The grading, explained
MotorGPA grades 295 vehicles on 102 criteria and publishes every number. These guides are the other half of the job: what the rules are, why they are what they are, what each subject actually measures, and why whole classes of car grade the way they do. Every figure in them is read from the live scoring data when the site is built, so a guide never quotes a number the scorecards no longer agree with.
Start here
The standard in one page, and the framework it applies. Everything below is the long version of these two.
How we gradeThe editorial standard: where every figure comes from and in what order, what is machine-written and what is checked by tooling, how confident the fleet is, and how a wrong figure gets corrected.The report cardThe framework itself — every subject, criterion, weight and normalization band, with a page per criterion charting the whole fleet against it.
How the grading works
The long version of the standard, one rule at a time — the scale, the two kinds of criteria, the segment and powertrain normalization, the weights, and how a decade of model years is graded — each with a worked example and live fleet figures.
How the GPA scale worksWhy a 0–100 score does not simply divide by 25, where the 1.0 and 4.0 anchors sit, how the letters are cut, and what the graded fleet's distribution actually looks like.Measured versus judged: the two kinds of criteriaA spec criterion is a number nobody argues with; a rated one is a judgment with evidence. How each becomes a 0–100 score, and why the split matters for trusting a grade.Graded within its segment: why a truck's MPG is not a sedan'sEvery measured spec is normalized against a band for the vehicle's own body type. What the bands are, how a value turns into a score, and why the same number grades differently in different classes.How the overall GPA is weightedSeven of the ten subjects feed the headline GPA, and three do not. The exact weights, why efficiency and ownership cost are graded on their own, and what a one-point change in each subject is worth.Efficiency is graded within powertrain classMPG and MPGe are different measurements, so gas, hybrid, plug-in hybrid and electric vehicles are each graded against their own bands. Why a gas car can out-grade an EV on Efficiency, and why that is correct.Model years, generations and carry-over: how history is gradedEvery nameplate carries up to ten model years, each scored on its own. How generation boundaries are sourced, what a carry-over year looks like in the data, and where the biggest one-year jumps in the fleet came from.How to read a MotorGPA report cardA walk down one real scorecard, top to bottom: the hero, the verdict and its alternatives, the production timeline, the fit and subject profile, and the ten collapsed subjects underneath — and what each is for.
Subject deep dives
One guide per report-card subject: what its criteria actually measure, how the graded fleet is distributed on it, and what separates the leaders from the rest.
The Reliability grade, explainedEight judged criteria across track record, build quality and support. What each one weighs, how the fleet is distributed, which body types and powertrains lead, and why it carries a fifth of the overall GPA.The Safety grade, explainedCrash-test results, the driver-assistance suite, and the everyday safety of seeing out and getting a child seat in. How the eleven criteria are weighted and where the graded fleet lands.The Efficiency & Range grade, explainedCombined, city and highway economy, driving range, charging speed for EVs, electric-only range for plug-ins, and annual energy cost — graded within powertrain class. What the criteria are and how each class is distributed.The Comfort grade, explainedPassenger room, cargo and bed capacity, and the judged comfort of the seats and ride. Which criteria apply to which body types, how the fleet is distributed, and a calibration problem this subject used to have.The Value grade, explainedStandard equipment, feature value per dollar, trim breadth, market standing, freshness and critical reception. What the eight criteria capture that price alone does not, and where the fleet sits.The Ownership Cost grade, explainedThe effective five-year cost — purchase, depreciation, maintenance — plus warranty and perks. Why the grade deliberately leaves out fuel, insurance and financing, how it is weighted, and why so much of the fleet fails it.The Technology grade, explainedScreens, software, connectivity and convenience: twelve criteria, one of them measured. Why the grade rewards responsiveness and updates over screen size, and which classes lead.The Driving Experience grade, explainedHandling, steering, braking, refinement, ergonomics and the fun-to-drive factor — seven judged criteria and one measured one. What the grade rewards, how the fleet is distributed, and where body type matters.
Why grades fall where they do
Patterns in the data that surprise people — a class of vehicle that fails a subject wholesale, a rule that produces a counterintuitive winner — and the honest reason for each.
Why the median car fails Ownership CostMore than half the graded fleet earns an F in Ownership Cost, and the reason is the framework rather than the cars. What the absolute bands do to a luxury-heavy catalog, why it has not been papered over, and how to read the grade in the meantime.Why sports cars grade so badly on EfficiencyCoupes and convertibles post the lowest Efficiency medians on the site. The band they are graded against, the economy figures they actually post, and why the grade is telling the truth even when it feels harsh.Why hybrids out-grade EVs on ReliabilityHybrids post the best Reliability median of any powertrain class and EVs the worst. What the eight reliability criteria reward, why an EV's simplicity does not show up in them yet, and what the numbers say class by class.Why pickups trail SUVs and sedans on SafetyTrucks post a Safety median well below the cars they share a showroom with. Which of the eleven criteria account for the gap, how the current-generation half-tons closed part of it, and what a truck buyer should check.
Head to head
Rivals on one page, graded the same way, with the specs and the scorer's own assessment beside each other.
Ten years of the Chevrolet Silverado 1500, gradedEvery model year of the Silverado 1500 on the site scored the same way. Where the grade moved, which criteria moved it, and what the 2019 redesign and the 2022 refresh each actually changed.Half-ton pickups compared: F-150, Silverado, Sierra, Ram, TundraThe full-size half-ton trucks on one page: overall GPA, the eight subject grades, towing, payload, economy and price, and the scorer's own assessment of each.Compact SUVs compared: RAV4, CR-V, Tucson, Sportage, Forester, CX-5 and rivalsThe best-selling class in America on one page — grades, cargo, economy and price for the mainstream compact crossovers, and what separates the top of the class from the bottom.Mid-size sedans compared: Camry, Accord, Sonata, K5, AltimaThe family sedans that survived the SUV era, graded side by side: overall GPA, subject grades, economy, rear-seat room, trunk and price, with the scorer's assessment of each.Minivans compared: Odyssey, Sienna, Pacifica, CarnivalFour minivans, one rubric. How the class grades on comfort, safety, efficiency and ownership cost, the seating and cargo figures behind it, and which one the grades favor for what.