2023 BMW 8 Series

The volume 2023 840i xDrive Coupe uses BMW's B58 3.0L turbocharged inline-six rated 335 hp; the M850i xDrive's 4.4L twin-turbo V8 tops the range at 523 hp. MY2023 is the second-generation (G15) facelift year with no change to engine output.

The B58 six delivers 368 lb-ft from just 1,600 rpm, giving strong low-end pull for a GT; the V8 adds 553 lb-ft for top-trim buyers.

BMW quotes 4.7 s for the AWD 840i xDrive Coupe (4.9 s for the RWD 840i), with instrumented tests typically matching or beating the claim; the M850i drops to about 3.6 s.

The B58 inline-six is widely regarded as one of the smoothest, most responsive turbo sixes on sale, with negligible lag and a 1,600-rpm torque peak; the optional V8 is similarly effortless.

The ZF-sourced 8-speed Steptronic Sport automatic with paddles shifts quickly and smoothly and rarely hunts; it is the class reference automatic.

For 2023 the Coupe is offered as RWD 840i or with rear-biased xDrive AWD on the 840i xDrive and standard on the M850i xDrive; no low range, but sophisticated performance AWD with an available M Sport differential.

Two gas engines (turbo I6 and twin-turbo V8) across RWD and AWD configurations, plus the separate M8; no hybrid, PHEV or EV option.

Both RWD and AWD 840i Coupes are EPA-rated 24 combined; the V8 M850i xDrive falls to 19.

A heavy AWD luxury GT; the turbo six manages 21 MPG in EPA city testing.

Tall eighth gear helps highway economy, but weight and performance tuning cap it at 29 MPG.

An 18.0-gallon tank at the 24 MPG combined rating yields roughly 432 miles of range.

Premium fuel at 24 MPG combined puts annual fuel cost at the top of the coupe band.

Every 2023 8 Series Coupe trim is rated by EPA on premium fuel, which BMW requires for this engine family; no regular-fuel option.

NHTSA lists both 2023 8 Series Coupe variants (2 DR RWD, 2 DR AWD) but has crash-tested neither, so every frontal, side and rollover field reads 'Not Rated'. Per the framework, an untested vehicle records 0 stars.

IIHS has never crash-tested the G15 8 Series, so it holds no Top Safety Pick or TSP+ and has no published crashworthiness results; low-volume luxury GTs are routinely skipped. Scored at the low end for untested vehicles rather than penalized as a known poor performer, since BMW's related CLAR-platform cars (5 Series, X5) test well.

Active Driving Assistant is standard on 840i and M850i: frontal collision warning with city collision mitigation (AEB incl. pedestrian/cyclist), lane departure warning, Active Blind Spot Detection, rear cross-traffic alert and auto high beams. Adaptive cruise and lane-keeping/centering are not standard — they require the ~$1,700 Driving Assistance Professional Package, which is a notable omission at a $90K+ price.

Standard camera/radar AEB with pedestrian and cyclist detection, but IIHS has not evaluated the 8 Series' front crash prevention, so there is no rating to cite. Inferred from the shared BMW sensor stack whose siblings (5 Series, X5) earned Superior vehicle-to-vehicle ratings, discounted for the absence of any direct night-pedestrian result.

Active Blind Spot Detection and rear cross-traffic alert are standard on every 2023 8 Series. Front cross-traffic warning, Lane Change Assistant and Lane Keeping Assistant with Active Side Collision Protection (the active-intervention layer) are reserved for the optional Driving Assistance Professional Package.

Lane departure warning (alert only) is standard; Steering and Lane Control Assistant (centering up to 130 mph) and active lane-keeping come only with Driving Assistance Professional. When equipped, BMW's centering is generally smooth on marked highways, but the volume buyer must option it.

Full-speed Active Cruise Control with Stop & Go is optional (Driving Assistance Professional), not standard. When fitted, the combined ACC + steering assist + traffic-light hold function is refined and well integrated, but the optional status on a flagship GT caps the score.

The 2023 8 Series offers only Extended Traffic Jam Assistant — hands-off driving up to 40 mph on limited-access highways — via Driving Assistance Professional. BMW's full-speed Highway Assistant (85 mph) was not offered on the 8 Series, so capability is limited to congestion.

Adaptive LED headlights with cornering function and automatic high-beam assist are standard, with BMW Laserlight (Selective Beam) available. Hardware is excellent, but IIHS has never rated the 8 Series' headlights, so the score rests on equipment rather than measured performance.

Typical long-hood GT coupe sightlines: low seating, wide C-pillars and a shallow rear window create rear-quarter blind zones. A standard rear-view camera with Park Distance Control helps, and Parking Assistant Plus with surround view is optional.

The coupe is a 2+2 with LATCH anchors in the two rear seats, but rear headroom and legroom are severely limited, access is through long two-door apertures past tilted front seats, and a rear-facing seat is barely practical. Only two seats can ever fit.

The 2023 840i xDrive Coupe is a 2+2 grand tourer with two rear buckets; four seats total, unchanged by the MY2023 LCI refresh.

Generous front headroom for a low-slung coupe.

Front legroom is mid-band for coupes and ample for tall drivers.

The fastback roofline leaves little rear headroom; adults hit the glass.

Rear legroom is token 2+2 space, suitable for children or short trips only.

The trunk is usefully sized for a two-door GT, though shallow under the sloping decklid.

Conventional storage: modest center armrest bin, small door pockets and a wireless charging tray. Nothing clever, and the rear seats mostly serve as parcel shelf.

Multi-way power front sport seats with adjustable bolsters and thigh support are excellent over long stints. The rear buckets are cramped, but they are rarely used in a 2+2.

Adaptive dampers give a compliant Comfort mode and tight body control. Run-flat tires on 19/20-inch wheels add some sharpness over broken pavement.

Wind and road noise are well suppressed at highway speed for a flagship coupe. Some tire roar comes through from the wide run-flat tires.

Dual-zone automatic climate, heated front seats and remote climate via the app are standard on the 840i. Ventilated seats, a heated steering wheel and heated armrests come through packages or options.

The entry 2023 8 Series Coupe is the rear-drive 840i with the B58 3.0L turbo six; the facelifted (LCI) 2023 lineup keeps the 840i, 840i xDrive and M850i xDrive coupes. Far above the coupe band ceiling, so it bottoms out.

The volume build is the AWD 840i xDrive Coupe ($90,400) with common packages (Executive/Premium content, M Sport extras), landing in the mid-$90ks; M850i xDrive builds run well past $105k.

Edmunds projects heavy maintenance and repair spend for the 840i Coupe once BMW Ultimate Care lapses after year 3 — big brakes, staggered 20-inch performance tires and dealer labor rates. Well above the coupe band ceiling.

Large luxury GTs depreciate steeply: used 2023 840i coupes already list around $45k–$72k against $87.5k–$90k+ MSRPs about three years in, implying low-40s retention by year 5 — below iSeeCars' broader 8 Series coupe average, which is skewed by M-badged and older-generation data.

BMW's New Vehicle Limited Warranty runs 4 years or 50,000 miles — par for German luxury brands.

BMW offers no separate longer powertrain warranty; the drivetrain is covered only by the 4-yr/50k NVLW, the band minimum and well short of Genesis/Lexus-style longer powertrain coverage.

BMW Ultimate Care covers factory-scheduled maintenance for 3 years/36,000 miles, plus 4-year/unlimited-mile roadside assistance and BMW Assist eCall/ConnectedDrive trials — stronger than Mercedes or Audi, which include little or no free maintenance; no fuel or charging credits.

$96,000 volume-trim price minus its estimated resale value after 5 years (43% retained, or about $41,280) leaves about $54,720 in depreciation. Add the projected $14,800 in 5-year maintenance and repairs, and owning this vehicle for 5 years costs about $69,520 in total.

J.D. Power gives the 2023 8 Series a 'Great' 85/100 quality & reliability score, and the model earned a J.D. Power Initial Quality award in its segment; Consumer Reports has too little 8 Series survey data to publish a strong model-specific verdict, so the score sits at the low edge of the top band rather than higher.

BMW ranked roughly at the industry average in the J.D. Power 2023 U.S. Vehicle Dependability Study and sits in the middle of Consumer Reports' brand rankings — behind Lexus, Toyota and Porsche but well clear of the bottom-third luxury brands.

MY2023 840i/M850i are covered by four NHTSA campaigns: a power-window/sunroof FMVSS 118 software recall, a small-batch transmission-control-unit weld seam recall (gear seizure risk), a starter-motor overheating fire-risk recall, and a 2026 driveshaft-to-differential connection recall (loss of drive/rollaway). Each is fleet-shared rather than 8-Series-specific and none is a do-not-drive, but two involve powertrain/fire risk, which is above-average activity.

The volume 840i uses BMW's B58 3.0L turbo inline-six with the ZF 8HP automatic — one of BMW's best-regarded modern pairings with a strong high-mileage record; the M850i's N63 4.4L twin-turbo V8 carries more long-term oil-consumption and heat-load risk, and the starter recall touches the 840i, keeping this below the top tier.

As BMW's flagship coupe, the 8 Series cabin uses extended Merino leather, glass-effect controls, aluminum and wood/carbon trim; reviewers rate materials appropriate to its ~$90K price and competitive with Mercedes and Lexus GTs, though the shared iDrive architecture with cheaper BMWs dilutes exclusivity slightly.

Built at Dingolfing alongside the 7 Series, the 2023 8 Series won a J.D. Power initial-quality award for fewest early problems in its segment, and reviewers report tight, consistent assembly with no widespread rattle or panel-gap complaints.

BMW has roughly 340 U.S. dealers with dense metro coverage and thinner rural presence; its J.D. Power service satisfaction sits mid-pack among luxury brands, and four years/50,000 miles of complimentary scheduled maintenance helps early ownership.

Out-of-warranty ownership carries a flagship-BMW cost profile: many parts (adaptive suspension, integral active steering, laser lights, body panels) are 8-Series-specific and dealer-priced, and low U.S. volume limits aftermarket depth, although the B58 and shared drivetrain parts are widely available.

The MY2023 LCI refresh standardized a 12.3-inch central touchscreen, up from 10.25 in, alongside a 12.3-inch digital cluster.

iDrive 7 is quick and logically laid out. Touch, rotary controller, voice and gesture inputs give redundant control, and physical climate buttons are retained.

Wireless Apple CarPlay and wireless Android Auto are standard on every 2023 8 Series.

The standard BMW Intelligent Personal Assistant handles natural-language commands. Native navigation with live traffic is standard, though it is the pre-iDrive 8 map system.

A 16-speaker Harman Kardon surround system is standard. The optional Bowers & Wilkins Diamond system is among the best factory systems available.

A standard 12.3-inch fully digital cluster replaced the earlier 10.25-inch unit for 2023. It is crisp and configurable, though BMW's gauge graphics draw some criticism.

BMW Operating System 7 supports Remote Software Upgrade for infotainment and some vehicle functions, plus map OTA. Feature additions are less frequent than on iDrive 8 cars.

The My BMW app covers remote lock/unlock, climate pre-conditioning, vehicle finder, status and Remote 3D View. NFC-based BMW Digital Key is supported, but the UWB Digital Key Plus is reserved for iDrive 8 models.

The wireless charging tray and front USB-C ports are standard; the rear seats get limited charging.

Comfort Access proximity entry and push-button start are standard. Remote engine/climate start via key fob or app is available, and NFC phone-as-key is supported.

Front and rear Park Distance Control and a rearview camera are standard. Parking Assistant Plus (Surround View, 3D View, Reversing Assistant, automated parking) is available.

A large full-color head-up display is standard even on the volume 840i, showing navigation, speed limits and driver-assist information.

The two-door 2+2 needs a front seat folded for rear access. With 33.6 in rear headroom and 29.5 in legroom, fitting a car seat through one door is awkward, so it frustrates daily family use.

Active Driving Assistant (AEB, lane departure warning, blind-spot monitoring) is standard. Adaptive cruise and lane-centering cost extra (Driving Assistance Professional), and the low-volume coupe has no NHTSA or IIHS crash ratings.

Front-seat comfort is excellent, but the rear is child-sized with no dedicated rear climate. A 14.8 cu ft trunk limits luggage for four.

The smooth B58 six and ZF 8-speed, a Comfort damper mode and a light-effort cabin make traffic easy. The car's width and low seating are minor annoyances.

The 840i xDrive is rated 24 mpg combined on premium fuel. Wide performance run-flat tires, brakes and dealer service are luxury-flagship expensive.

At about 191 in long and 75 in wide, with a 39 ft turning circle and limited rear-quarter visibility, the coupe is bulky in town. Standard parking sensors and available surround-view help.

There is no US tow rating and no hitch, and the payload is minimal. It is a luxury GT with no work role.

Merino leather, delicate trim, adaptive electronics and low-profile run-flats make it fragile for hard use, and it has no fleet history.

There is no onboard power outlet for tools, no roof rails, no hitch and no upfit ecosystem.

It is a natural grand tourer: superb front seats, a quiet cabin and a supple Comfort mode. 29 mpg highway from a roughly 17-gal tank gives about 500 miles of range, and available Driving Assistance Professional reduces fatigue.

xDrive AWD on the volume trim handles snow and rain, but low ground clearance, a long front overhang, and no roof rails or hitch keep it on pavement.

The 14.8 cu ft trunk fits weekend luggage, and the 50/50 folding rear seatbacks add length. The narrow, shallow opening and lack of a hitch or roof rails limit bulky gear.

Adaptive dampers, xDrive AWD and available Integral Active Steering give composed, grippy handling. The roughly 4,200 lb GT weight blunts agility compared with true sports coupes.

The steering is precise and nicely weighted but filters out most road feedback.

The brakes are strong and progressive with good fade resistance. They are not the M Sport four-piston setup of the M850i, but they suit GT duty.

The B58 3.0L turbo I6 (335 hp, 368 lb-ft from 1,600 rpm) and ZF 8-speed are benchmark-smooth, with prompt tip-in and seamless shifts. Auto stop/start is well damped.

The inline-six is silky and sounds pleasant when worked, and is near-silent at cruise. Some synthesized sound enhancement in Sport mode is noted.

The long wheelbase and wide track give a large turning circle for a coupe; the xDrive volume trim sits at the upper end of the range.

The low seating position has wide power adjustment and well-placed controls, with a rotary iDrive and physical climate keys. Rear-quarter visibility and long doors in tight spaces are the usual coupe caveats.

It is a quick, characterful grand tourer (0–60 mph in about 4.7 s) that is rewarding on a winding road. Reviewers frame it as GT first, sports car second.

The 2023 840i Coupe comes well equipped for a flagship: Vernasca leather power sport seats, Live Cockpit Professional with the larger 12.3-inch center screen added in the LCI, Harman Kardon audio, adaptive LED headlights, head-up display and Driving Assistant. However, ventilated seats, Bowers & Wilkins audio and the M Sport/Executive content cost extra.

At ~$87.5k–$90k, the 840i delivers 335 hp, 4.7 s to 60 mph (xDrive), and a luxury cabin. That undercuts the Mercedes-AMG and Porsche alternatives, but it is pricey next to the Lexus LC 500 and gives up dynamic sharpness to the 911. Fair value, not a bargain.

For 2023 the Coupe body offers three choices: 840i (RWD), 840i xDrive and M850i xDrive, with two engines and RWD/AWD. Convertible and Gran Coupe bodies and the separate M8 widen the family. There is no manual, hybrid or EV.

8 Series US sales across all bodies run only a few thousand a year and have declined since launch, and the two-door Coupe is the smallest slice behind the Gran Coupe. It is a niche flagship in a shrinking large-luxury-coupe segment.

BMW is a top-tier aspirational luxury brand with a deep enthusiast base, and the 8 Series badge carries flagship halo and E31 heritage. Its pull is slightly less than the Porsche 911's in this price band.

As a slow-selling flagship, the 8 Series commonly carried BMW Financial Services lease support and dealer discounts below MSRP in 2023. Inventory was tighter in that post-pandemic year than it is today, which limited the size of the deals.

MY2023 is the G15 generation's mid-cycle refresh (LCI) year, with a revised grille, a larger 12.3-inch center screen and updated tech. The underlying platform dates to MY2019, so the car was current but not cutting-edge, and no replacement was imminent for 2023 buyers.

Reviewers praise the smooth B58 six, the refined cabin and the car's long-distance GT comfort. They criticize its weight, numb steering compared with the 911, and the price, and it has not appeared on 10Best or won major comparisons.