2021 Ford Mustang

Volume GT 5.0L Coyote Ti-VCT V8 makes 460 hp; EcoBoost 2.3T base 310 hp (330 hp with High Performance Package); new-for-2021 Mach 1 5.0 V8 480 hp; Shelby GT500 5.2 supercharged Predator V8 760 hp.

GT V8 delivers 420 lb-ft; EcoBoost 2.3T makes 350 lb-ft on a broad plateau; Mach 1 shares the GT's 420 lb-ft; supercharged GT500 tops the range at 625 lb-ft.

Instrumented tests: GT 5.0 with 10-speed automatic and Performance Package clocked ~4.3 s to 60; GT manual ~4.5 s; Mach 1 ~4.4 s; Shelby GT500 with 7-speed DCT ~3.3 s; EcoBoost auto ~5.2 s.

The 5.0 Coyote V8 (Gen 3 in 2021) is smooth, torquey, and free-revving with immediate throttle response — the defining refinement statement of the modern muscle car. EcoBoost 2.3T pulls hard with early torque but reviewers note some coarseness under load and a less musical soundtrack, keeping the composite in the upper-70s rather than the premium-brand 80s tier.

Ford's 10R80 10-speed automatic is widely praised — quick, decisive shifts that keep the V8 in its powerband and no hunting in daily driving. The Tremec 6-speed manual (TR-3160 on GT, TR-6060 on Mach 1) comes with rev-matching and is one of the last affordable V8 manuals on the market. GT500's 7-speed dual-clutch is race-quick but only in the halo model.

Every 2021 Mustang trim (EcoBoost, GT, Mach 1, Shelby GT500) is rear-wheel drive only — Ford does not offer AWD anywhere in the coupe lineup, unlike Dodge Charger AWD, Nissan GT-R, or Porsche 911 Carrera 4. Scores at the low end of the guidance for RWD-only.

For 2021, five distinct powertrain configurations are available — 2.3T EcoBoost I4 (310 hp), EcoBoost High Performance Package (330 hp), 5.0 V8 GT (460 hp), new-for-2021 Mach 1 5.0 V8 (480 hp), and Shelby GT500 5.2 supercharged V8 (760 hp) — a wider spread than most sports-car rivals. But there is zero electrification (no hybrid, PHEV, or EV variant), which caps the score below the top band per the 'includes electrified options' criterion.

EPA combined fuel economy for the volume EcoBoost 2.3T 10-speed automatic fastback is 25 MPG. V8 trims fall to 14–19 MPG combined. The base EcoBoost drops the manual for 2021 — the 10AT is the only transmission on the 310-hp trim; the 330-hp High Performance Package retains the 6-speed manual at 22 MPG combined.

Volume EcoBoost 10AT returns 21 city MPG per EPA — very low in the coupe band, which reaches 60 MPG for hybrid competitors. V8 trims sit at 12–15 city MPG.

EcoBoost highway MPG (32) is the 2021 Mustang's efficiency high-water mark — respectable for a performance coupe but well behind hybrid-driven competitors clearing 50 MPG. V8 trims range from 18 (GT500) to 24 (GT).

16.0-gallon tank × EPA 25 MPG combined yields roughly 400 miles for the EcoBoost — middling for the coupe segment. V8 trims drop into the low-200s to low-300s.

Per fueleconomy.gov at EPA's standard 15,000 mi/yr assumption, the volume EcoBoost 10AT lands at ~$2,200/yr. V8 trims run from ~$2,900 (GT auto) up to ~$3,900 (Shelby GT500). Model average lands well into the second half of the coupe cost band.

Every 2021 Mustang engine — EcoBoost 2.3T (base and HPP), GT 5.0, Mach 1 5.0, Shelby GT500 5.2 supercharged — accepts 87-octane regular as the minimum, but Ford recommends 91-octane premium to achieve advertised horsepower and torque. No E85, no diesel, no home-charging option, and no hybrid to sidestep the premium cost. Every trim carries the same premium expectation, so the score sits in the lower half of the 'recommended but not required' band.

NHTSA rated the 2021 Ford Mustang 2-door coupe 4 stars overall — 4-star frontal driver, 5-star frontal passenger, 5-star side barrier, and 4-star rollover. Rating is consistent across the S550 generation.

The 2021 Mustang is not an IIHS Top Safety Pick. S550-generation results show Good on moderate overlap front, side (original test), roof strength, and head restraints, but only Acceptable driver small-overlap and Marginal passenger small-overlap — enough for a mid-band score rather than an award-tier finish.

For 2021 Ford made Co-Pilot360 standard across every Mustang trim: Pre-Collision Assist with AEB and Pedestrian Detection, BLIS with Cross-Traffic Alert, Lane-Keeping System, Auto High-Beam Headlamps, and rear-view camera. Adaptive Cruise Control with Stop-and-Go remains bundled in the optional Safe & Smart / Co-Pilot360 Assist package — keeps the score out of the top band.

Ford's Pre-Collision Assist with Pedestrian Detection on the 2021 Mustang was not individually IIHS-tested for front crash prevention, but the same generation of the system across Ford's lineup earned Superior daytime vehicle-to-vehicle and Advanced/Basic night pedestrian ratings. Score reflects adequate daytime performance with weaker night results.

BLIS with Cross-Traffic Alert is standard on every 2021 Mustang trim as part of the newly-standard Co-Pilot360 package — an upgrade from earlier S550 model years when it was optional on the base EcoBoost. Alert-only, no active steering intervention; trailer coverage not applicable to a coupe.

The 2021 Mustang's Lane-Keeping System offers lane-departure warning plus a corrective steering nudge; Ford does not offer true lane centering on the coupe. Reviewers describe it as usable but reactive, well behind competitors with full centering assist.

Adaptive Cruise Control with Stop-and-Go and Lane-Centering is available only via the optional Safe & Smart Package (Co-Pilot360 Assist) on 2021 — not standard, and not offered on some base configurations. When equipped it is competent but is not marketed or integrated as a highway-assist mode.

Ford's BlueCruise hands-free highway system is not offered on the 2021 Mustang at any trim — at launch it was reserved for the 2021 F-150 and Mustang Mach-E. Bottom of the guidance band.

Full LED headlamps with auto high-beams are standard on all 2021 Mustangs; IIHS rated the S550 Mustang headlights Marginal to Acceptable depending on trim/package, without a Good result on any configuration. Score sits at the boundary between the middle and lower guidance bands.

Reviewers consistently cite the S550 Mustang coupe's compromised sightlines — thick B/C pillars, high beltline, and a small fastback rear window create significant blind zones. A standard rear-view camera helps when reversing but not in daily traffic, and 360-degree camera is not offered on 2021. Below average even against other coupes.

The Mustang coupe is a nominal 4-seater, but LATCH access requires folding a front seat, ducking under the low roofline, and reaching into a cramped rear bench. Rear headroom is limited enough that many child seats will contact the sloping backlight. Firmly in the difficult-anchors, tight-quarters band.

Standard 2+2 fastback layout across EcoBoost, GT, Mach 1, and Shelby GT500 trims for the S550 sixth-generation Mustang; rear seats are token/child-size.

Ford-published front headroom for the 2021 Mustang fastback without the optional glass roof; drops to 34.8 in with sunroof.

Class-leading front legroom for a coupe — the driver's cell is generous even for tall occupants and is a hallmark of the S550 chassis.

The fastback's sharply raked roofline crushes rear-seat headroom below the segment band; children and short teens only.

Rear legroom is below the coupe band's 32 in floor — the back seat is emergency/child-only, not adult-usable. (S650 dropped this to 29.0 in for 2024+; 2021 S550 retains the slightly better 30.6 in figure.)

Above-average trunk for a 2+2 sports coupe — swallows a set of golf clubs or two carry-ons — but well short of a sedan; folding rear seatbacks extend the load floor for skis or longer items.

Typical sports-coupe storage: modest center console bin with a hinged armrest, shallow door pockets, small glovebox, and folding rear seatbacks that extend the trunk. The 2021's traditional dashboard (SYNC 3 with an 8-inch touchscreen, or the optional 12-inch digital cluster on Premium) leaves a small tray beneath the HVAC controls for a phone — slightly more usable than the S650's twin-cluster layout.

Front seats are comfortable for long stints in EcoBoost and GT trims but cushions run flat and lateral bolstering is modest; Recaro sport seats are available on Mach 1 and Shelby models for enthusiasts. The rear bench is punishing for anyone over 5'6" — cushion is short and the roofline forces a slouch.

Better-than-expected compliance for a pony car — a slight initial softness takes the edge off broken pavement, so the S550 leans grand-tourer rather than track special. Optional MagneRide (GT Performance Pack Level 2 and Mach 1 Handling Package) tightens body control without ruining ride. Non-MagneRide GTs on 19-inch wheels can feel busy on rough concrete.

Loud by mainstream standards — the standard active exhaust (GT and up) broadcasts intake and exhaust at cruise, and there's noticeable road roar on coarse pavement, especially on Performance Pack tires. Quiet mode calms it, but the S550 still trails a Camry or 4 Series for isolation.

Dual-zone automatic climate control, keyless entry, and push-button start are standard across the range; heated + ventilated front seats and a heated steering wheel arrive on EcoBoost Premium and GT Premium trims. No rear climate vents (fine given the vestigial back seat). Slightly less standard-content than the current S650 but broadly the same equipment ladder.

2021 Mustang EcoBoost Fastback opened at $27,155 MSRP + $1,195 destination — well below the coupe-band midpoint, giving the S550 Mustang one of the lowest entry prices in the sports-coupe class before the S650 hikes.

EcoBoost Premium Fastback (the higher-volume configuration above base EcoBoost but below GT) started at $32,655 + $1,195 destination and lands near $34k as typically equipped. GT Fastback opened around $37,315, GT Premium ~$41,315, and the new-for-2021 Mach 1 ~$53,915.

Mustang 5-year maintenance + repair projections cluster around $5,300–$6,300 per RepairPal / CarEdge — sports-coupe brake/tire consumables offset otherwise straightforward EcoBoost I-4 or Coyote V8 mechanicals. GT and Mach 1 trend higher; EcoBoost sits near the middle of the range.

The 2021 Mustang held up better than most muscle/sports coupes thanks to enduring nameplate demand and pandemic-era used-market strength — iSeeCars and KBB peg 5-year retention around 48–54%. GT and Mach 1 variants track a couple points above EcoBoost; GT500 residuals meaningfully higher.

Ford's standard new-vehicle limited warranty for the 2021 Mustang is 3 years / 36,000 miles — industry baseline, at the low end of the coupe normalization band.

Ford powertrain coverage is 5 years / 60,000 miles — the industry floor, well behind Hyundai/Kia's 10-year plans. Lower end of the coupe normalization band.

No complimentary scheduled maintenance program (unlike BMW/Toyota/Jaguar). Ford does include 5-year/60,000-mile roadside assistance — above industry norm — plus a short FordPass Connect connected-services trial. Absent free service caps the score.

$34,000 volume-trim price minus its estimated resale value after 5 years (51% retained, or about $17,340) leaves about $16,660 in depreciation. Add the projected $5,700 in 5-year maintenance and repairs, and owning this vehicle for 5 years costs about $22,360 in total.

By 2021 the S550 was a mature 6-year-old platform, and Consumer Reports gave the 2021 Mustang above-average predicted reliability (owner survey and multi-year track record); J.D. Power's Quality & Reliability score for the 2021 Mustang was in the 82/100 'Great' range. Ford brand headwinds and known MT-82 manual complaints cap the ceiling.

Ford has consistently ranked mid-to-lower pack in dependability studies through the 2018-2022 window — competent but below industry average and well behind top-5 dependability leaders (Toyota, Lexus, Porsche, Buick).

The 2021 Mustang has accumulated a handful of NHTSA recalls (brake booster/master cylinder, transmission housing, rearview camera image, TPMS) — typical volume for a mainstream sports coupe with no catastrophic systemic issues, and materially cleaner than the early S650. TSBs cover common S550 items (MT-82 shifting, infotainment, coolant leaks).

The 5.0L Coyote V8 (Gen 3 for 2018-2023) has a decade-plus of high-mileage reliability data and a huge enthusiast base; the 2.3L EcoBoost I4 has proven itself across the Ford lineup; the 10R80 10-speed automatic (shared with F-150) is generally durable. The Getrag MT-82 manual's notchy shifting and premature-wear complaints are the notable weak point that keeps this from the 85+ tier.

The S550 pre-S650 cabin was widely criticized by reviewers for hard plastics, budget-feeling switchgear, and material choices that lagged the price class — particularly on Premium trims priced above $40k. Recaro seat option and Mach 1-specific trim help, but base materials are the weakness.

By 2021 Flat Rock assembly of the S550 was mature — panel gaps and initial quality settled well after the 2015-2017 growing pains. Scattered rattle and trim-fitment complaints persist on forums, but J.D. Power IQS scores for the Mustang were competitive within the segment.

Ford runs one of the densest US dealer networks (~3,000 dealers in 2021) with nationwide coverage — easy access from anywhere in the country. J.D. Power CSI puts Ford service satisfaction near mass-market average, not class-leading.

The Mustang has the largest aftermarket support of any modern American sports car — OEM and aftermarket parts are abundant, cheap, and available from countless suppliers (Ford Performance, Steeda, Roush, LMR, AmericanMuscle, Summit). 2021 is now a used-market model, further lowering parts costs via a deep salvage pool.

The 2021 Mustang uses Ford's SYNC 3 system with a standard 8.0-inch color touchscreen on every trim from EcoBoost base through Shelby GT500; no larger screen was offered.

SYNC 3 in 2021 was a mature, generally well-reviewed system with quick tile-based menus, crisp graphics, and useful physical volume/tune knobs and hard buttons; by 2021 it was showing its age against newer 10-12" systems but remained one of the more praised legacy infotainment systems.

Wired Apple CarPlay and Android Auto are standard on every 2021 Mustang trim; Ford began pushing an OTA SYNC 3 update in 2021 that enabled wireless Apple CarPlay on some equipped units, but wireless Android Auto was not supported until SYNC 4 (post-2022).

SYNC 3 voice recognition handles basic media/phone/climate commands but is command-driven rather than natural-language; embedded navigation is optional (bundled in the SYNC 3 with Navigation package or included on Premium trims) and adequate but most owners default to phone projection.

Standard 9-speaker system is decent; available Bang & Olufsen 12-speaker premium audio (1,000W amplifier on GT Premium/Mach 1) is well-regarded and commonly cited as one of the best-sounding options in the sports-coupe segment.

12-inch fully digital, configurable LCD instrument cluster is standard on EcoBoost Premium, GT Premium, Mach 1, and Shelby GT500 with multiple drive-mode themes; base EcoBoost and base GT still use analog gauges with a 4.2-inch center info display, so it isn't standard across the lineup.

2021 Mustang has FordPass Connect embedded 4G LTE modem, but comprehensive whole-vehicle OTA updates were not part of SYNC 3; owners could receive periodic map/infotainment updates via Wi-Fi and Ford's one-off wireless CarPlay OTA, but there is no feature-adding, module-wide OTA program like SYNC 4 or Tesla.

FordPass Connect is standard on every 2021 Mustang and includes remote start, remote lock/unlock, vehicle locate, fuel level/odometer, and scheduled start via the FordPass app; the app is polished, free, and well-rated, though it lacks phone-as-key on the Mustang.

2021 Mustang has two USB-A ports (one USB 2.0, one USB 3.0) up front, a 12V outlet, and rear-seat USB not standard on most configurations; there is no USB-C port, no wireless phone charging pad, and no household 110V outlet — dated even by 2021 standards.

Intelligent Access with push-button start is standard across every 2021 Mustang trim, and remote start via FordPass app is standard through FordPass Connect; there is no phone-as-key or hands-free entry.

Standard rear-view camera on every trim; reverse-park sensors are standard on Premium/Mach 1/GT500 and optional on base trims; no 360-degree surround camera and no automated parking assist offered on the 2021 Mustang.

No head-up display was offered on the 2021 Mustang on any trim, including the Shelby GT500 — a notable omission vs. rivals like the Camaro (which offered HUD on SS/ZL1) and Corvette.

Two-door coupe with 30.6 in of rear legroom and long, heavy doors that swing wide in tight parking. LATCH anchors are provided at the outboard rear seats, but installing a rear-facing seat still forces the front seat far forward, and the low fastback roofline forces adults to duck under to buckle a child. Regularly frustrating for daily family logistics.

Ford Co-Pilot360 became standard for the 2020 model year and continues on all 2021 Mustangs: Pre-Collision Assist with automatic emergency braking and pedestrian detection, BLIS with cross-traffic alert, lane-keeping system, auto high-beam, and rear-view camera. Adaptive cruise and evasive steer assist require the optional Co-Pilot360 Assist+ package. NHTSA gives the 2021 Mustang 5 stars overall but IIHS does not name it a Top Safety Pick.

Front seats are supportive over long distances, but 30.6 in of rear legroom and the low fastback roof make the back seat borderline unusable for adults or older children beyond short hops. No rear climate vents and no rear USB port. The 13.5 cu ft trunk swallows a couple of soft-side bags but not the amount of gear a family of four packs for a long weekend.

The volume EcoBoost pairs a 310-hp 2.3L turbo with a well-sorted 10-speed automatic that is smooth in traffic and comfortable on standard 18-in wheels. Forward visibility over the long hood is good, but the fastback C-pillars create real over-shoulder blind spots and the wide (75.4 in) body feels large in narrow lanes. SYNC 3 is quick and CarPlay/Android Auto are standard, but adaptive cruise remains optional, capping the daily-driver score.

The volume 2021 EcoBoost automatic returns 21/32/25 mpg on the EPA cycle — reasonable for a rear-drive sports coupe but nothing exceptional. It runs on regular fuel; upgrading to the GT drops combined MPG to 19 on premium (Ford recommends premium for peak power). Performance tires, brakes, and Ford dealer service on a specialty coupe run above mainstream commuter cars.

At 188.3 in long and 75.4 in wide with a ~40 ft turning circle, the Mustang is a mid-size two-door that feels large in urban lots and city intersections. Standard rear-view camera helps, but the long, heavy doors, low nose, and thick C-pillars make tight parking and lane changes a chore compared with a compact coupe like the Audi TT. A 360-degree camera is not offered on any 2021 trim.

Not rated for towing in the US — Ford does not publish a factory tow capacity for the 2021 Mustang, and dealer-installed hitches are for bike racks only. No bed, no meaningful payload, 13.5 cu ft trunk with a shallow aperture. There is essentially no work capability of any kind.

The Coyote 5.0L V8 and EcoBoost drivetrain are proven and Ford's dealer network is broad, but the Mustang is engineered as a performance coupe with cloth/ActiveX/leather surfaces, low-profile tires, and no wash-out cargo area. It has no fleet-work reputation and is not marketed for hard-use duty.

No factory 120V outlet, no factory tow hitch, no roof-rack system, no meaningful bed or bed-substitute. Cargo tie-downs are limited to a few small hooks in the trunk. The Mustang has a large aftermarket for performance, not for work.

Front sport seats are comfortable over long hauls (Recaros optional on GT PP, standard on Mach 1), and the 10-speed auto's tall top gears settle the cabin at highway cruise. The EcoBoost's 16-gal tank at 32 hwy mpg gives ~510 mi of highway range while the GT drops to ~380 mi at 24 hwy mpg. Adaptive cruise is optional rather than standard on the volume trim, limiting fatigue reduction on multi-hour drives.

Rear-wheel drive only — no AWD offered at any price — ~5.0 in of ground clearance, low-profile summer or all-season performance tires depending on trim, no roof rails, and no factory hitch. Snow performance depends entirely on aftermarket winter tires, and any gravel road with real texture will scrape the front splitter. Pavement-bound with almost no outdoor utility.

13.5 cu ft coupe trunk is above average for a sports coupe (roughly 2x a Porsche 718's front trunk), and a split-folding rear seatback opens a small pass-through for long items like skis or a golf bag. But there is no hatchback flexibility, no roof rails, no factory hitch, and the shallow trunk-lid opening limits bulky-item loading.

Volume GT is composed and secure on the S550 chassis, especially with the optional Performance Package (bigger brakes, 19x9.5-in wheels, unique stability calibration), though Ford controversially downgraded PP tires from Michelin Pilot Sport 4S (2018-2020) to Pirelli P-Zeros for 2021 — reviewers noted the change hurt outright grip. The new-for-2021 Mach 1 (with $3,750 Handling Package on Michelin Pilot Sport Cup 2s) pushed past 1.10 g on the skidpad, but that halo capability doesn't fully bleed into the volume GT. Places 2021 GT near Camaro (70.6) and a step below the newer S650 (76) which brought a widened front track and MagneRide.

S550 electric power steering with three modes (Comfort/Normal/Sport) is precise and consistent in Sport but widely characterized as numb — a known weakness of the 2015-2023 platform that Ford's own chief engineer publicly acknowledged when introducing the S650. Enthusiast forums and reviewers consistently call it a step behind Porsche, BMW, and even the newer Nissan Z for feedback. Adequate for daily driving, forgettable for the driver looking for real communication.

Base GT gets 13.9-in front / 13.0-in rear rotors with 4-piston front calipers — firm pedal, competent stops. GT with Performance Package adds larger front rotors and 6-piston Brembos, and the new-for-2021 Mach 1 with the Handling Package pulled 93.8 ft from 60 mph — one of the shortest distances Edmunds has ever measured. Volume GT scores in the strong-mid tier for the segment; halo capability is available but not standard.

The Gen 3 5.0L Coyote V8 (2018+) is torque-rich from idle, free-revving to 7,500 rpm, and calibrated with immediate throttle response — no lag, minimal shudder. Ford's 10R80 10-speed automatic shifts crisply and rarely hunts on the GT. The Getrag MT-82 6-speed manual (Tremec TR-3160 on GT PP, Tremec TR-6060 on Mach 1) is engaging with rev-match, though its clutch/shifter feel is more mechanical than premium. EcoBoost 2.3T pulls hard but is coarser under load.

Active Valve Performance Exhaust (standard on GT, Mach 1, GT500; optional on EcoBoost) produces the signature Coyote V8 growl with selectable Quiet/Normal/Sport/Track modes — celebrated character rather than intrusion. Vibration through wheel and pedals is low at cruise. Mach 1's stainless-steel active exhaust is even more evocative. Enthusiasts score this a highlight; long-haul commuters may find Sport/Track loud.

Ford's published curb-to-curb turning diameter for the 2021 Mustang is 37.8 ft — mid-band for the coupe segment and better than the S650's 40.0 ft, reflecting the S550's slightly tighter geometry despite the same 107.1-in wheelbase.

S550 interior offers a low, buckets-forward driving position with supportive standard front seats (Mach 1 gets grippier Recaros as part of the Handling Package). Column tilt/telescope range is generous and toggle-switch controls are intuitive. Downsides: 8-inch SYNC 3 touchscreen is small by 2021 standards, hard plastics on lower dash, no power seat recline, and coupe visibility is compromised by the thick C-pillars and narrow rear glass typical of fastback muscle cars — though Edmunds notes it's still better than the Camaro's notorious sightlines.

The 2021 Mustang is the archetypal enthusiast recommendation — rear-wheel drive, 460-hp naturally aspirated V8, available Tremec 6-speed manual with rev-match, and the new-for-2021 Mach 1 revives a storied nameplate with Shelby GT350-sourced brakes, oil cooler, and Tremec TR-3160 (or TR-6060 with Handling Package). Character, sound, and responsiveness combine into a definitional 'long-way-home' machine. Only track-focused rivals (Cayman, 911) rate meaningfully higher for pure driver engagement; almost nothing at this price matches Mustang GT for everyday joy.

The 2021 base EcoBoost included SYNC 3 on an 8-inch touchscreen, LED headlamps, Track Apps, and cloth Recaro-style sport seats, but the 12-inch digital instrument cluster, dual-zone climate, Ford Co-Pilot Assist+ (adaptive cruise, lane-centering, evasive-steer), and heated seats remained gated to Premium trim or the 201A/301A/401A equipment groups. Competitive with the aging 6th-gen segment, not generous by 2021 standards.

Standout bang-for-buck: 2021 GT delivered a 460-hp naturally aspirated 5.0L Coyote V8 with a Tremec MT-82 6-speed from ~$36K, the newly reintroduced Mach 1 packed 480 hp (with the Handling Package), Tremec TR-3160 gearbox, and a track chassis from ~$53K, and the Shelby GT500 supplied 760 supercharged hp under $73K — no rival matched the horsepower-per-dollar ladder.

One of the widest sports-car lineups for 2021: EcoBoost, EcoBoost Premium, GT, GT Premium, Mach 1 (reintroduced for 2021, replacing the 2019–2020 Bullitt), and Shelby GT500, in coupe or convertible bodies on EcoBoost/GT, with 6-speed manual or 10-speed auto on GT/Mach 1/GT500. Appearance packages (Black Accent, California Special, Handling Package on Mach 1) added further breadth. Prices spanned ~$27K to ~$80K.

2021 was one of the Mustang's stronger recent years — US volume rose against the 2020 pandemic dip, and the pony car remained one of the top-selling sports coupes globally. Domestically it finished narrowly behind the Dodge Challenger but well ahead of the Camaro, holding steady mid-pack in an overall shrinking segment.

The Mustang nameplate carries nearly six decades of pop-culture heritage and one of the strongest enthusiast followings in the industry — the pony badge is a halo unto itself. However, Ford as a corporate brand lacks the aspirational prestige of Porsche/BMW/Mercedes in the premium sports coupe tier, capping brand pull for luxury shoppers.

2021 was a peak chip-shortage year — inventory tightened through the second half, Ford Credit's subvented APR programs were curtailed, and dealer markups on Mach 1 and Shelby GT500 became widespread (often $5K–$25K over MSRP). EcoBoost and GT still transacted at or slightly below MSRP with modest financing offers, but no meaningful buyer's-market incentives existed.

The sixth-generation S550 launched for 2015 and received its facelift for 2018, so 2021 was year 7 of the platform and year 3 past refresh — squarely mid-to-late cycle. The newly reintroduced Mach 1 trim added meaningful showroom novelty for 2021, and Ford had not yet announced the S650 successor (that reveal came in September 2022), so buyers weren't yet facing imminent-replacement risk.

2021 was a strong critical year for the Mustang thanks to the reintroduced Mach 1 — Car and Driver named it a 2021 Editors' Choice, MotorTrend's Best Driver's Car field included the Mach 1 as a finalist, and reviewers praised its track chassis and Tremec gearbox. The GT500 continued to earn straight-line and lap-time acclaim, though Porsche 718 Cayman and Corvette C8 still topped premium sports-coupe comparisons.