How It Works

Methodology

Every number on MotiveGrid is derived from primary sources and documented assumptions. We show you what goes into each score, where the data comes from, and what we deliberately don't model — because honest limitations build more trust than false precision.

Analysis by the MotiveGrid Engineering Team · reviewed against primary sources

MotiveGrid Score Cost of Ownership Powertrain Safety Driver Assistance Livability Data & Sources

TL;DR

The MotiveGrid Score is one number from 0 to 100 that summarizes how a vehicle stacks up across five things buyers actually care about: ownership cost, powertrain, safety, driver assistance, and interior livability. We combine these into a single rank so you can compare any two cars at a glance — and then drill into the pillar scores to see why.

What the Score Represents

The MotiveGrid Score is a buyer-decision score, not a critic's opinion. Five independent measures of a vehicle are computed from public data, weighted by how much they typically affect a real-world purchase, and combined into one number. The score is calibrated against the population of vehicles in our catalog — a score of 70 means a vehicle is meaningfully above the median of comparable new cars on sale in 2026.

Built for shoppers

The score is designed to help you eliminate vehicles that don't fit before you spend an afternoon at a dealer, and to surface vehicles you might not have considered. It is not a prediction of how much you will enjoy driving the car.

Updated as data changes

Scores recompute when crash-test ratings are published, EPA efficiency figures are revised, fuel and electricity prices shift, or our underlying data is corrected. Vehicles that haven't been crash-tested yet carry a “Provisional” flag (see the Safety tab for how this works).

Honest by construction

Every input is from a primary source (EPA, NHTSA, IIHS, EIA, manufacturer owner's manuals) or a documented industry data provider. We don't use manufacturer marketing claims as data, we don't take sponsorship, and we publish what we deliberately don't model.

The Five Pillars

Each pillar is its own 0–100 score with its own methodology — explained in detail in the tabs above. The pillars are independent: a vehicle can score high on safety and low on driver assistance without one masking the other.

Cost of Ownership

5-year out-of-pocket cost — depreciation, insurance, fuel or electricity, maintenance, tires, and financing. Higher score = lower cost. Weighted comparably to powertrain and livability.

Powertrain

How efficient the vehicle is, and how reliable the powertrain is expected to be over five years. Combines EPA efficiency ratings with a brand-level reliability index, warranty terms, and platform maturity. Weighted comparably to cost of ownership and livability.

Safety

Crash-test ratings (NHTSA and IIHS) combined with the active safety features the vehicle actually ships — automatic emergency braking, blind-spot monitoring, and collision warnings. The most heavily weighted pillar: crash protection is what buyers tell us they prioritize first.

Driver Assistance

How much of the driving task the vehicle can take on — adaptive cruise, lane centering, hands-free highway operation, automated parking. Distinct from safety: this is the convenience automation tier, not crash-avoidance technology.

Livability

Cabin and cargo space, plus how easy the vehicle is to maneuver. Scored against peers in the same vehicle class — a compact sedan and a three-row SUV are not compared against each other on this dimension.

How the pillars are weighted

The composite is a weighted average of the five pillar scores. We publish the top-level weights in full — transparency is the whole point of the score:

Safety	25%
Cost of Ownership	20%
Powertrain	20%
Livability	20%
Driver Assistance	15%

We disclose the five pillar weights, but not the sub-score weights inside each pillar (for example, exactly how safety splits between crash protection and crash avoidance). Those finer weightings stay qualitative: each pillar's methodology page tells you what counts most within it, without publishing a formula that invites gaming.

How the Pillars Combine

The five pillar scores are combined into a raw composite, then put on a consumer-friendly scale. Two outputs are shown on every vehicle page:

MotiveGrid Score (0–100)

The headline number. Computed from the pillar weighted average, then mapped onto a consumer scale that spreads the catalog across the range so close-but-distinct vehicles don't collapse onto the same number. Most current vehicles fall between 50 and 97 — around 70 is typical, 80+ is well above average, and 90+ is exceptional.

Class Percentile

Where this vehicle ranks within its own vehicle class — for example, “top 5% in 3-row SUVs.” A premium SUV competing against other premium SUVs can rank well in class while having a lower absolute MotiveGrid Score than a much cheaper sedan that beats everything in its own segment.

Why both numbers matter

The absolute score answers “is this a strong vehicle, period?” The class percentile answers “is this the best choice in the category I'm shopping?” Both are useful — they answer different questions.

Value Score

The MotiveGrid Score tells you how good a vehicle is. The Value Score tells you how good it is relative to what it costs in its class. A high MotiveGrid Score on an $85,000 SUV is admirable but financially unremarkable. A high MotiveGrid Score on a $28,000 sedan is genuinely useful information for most buyers.

How it works

The Value Score blends the raw MotiveGrid Score with where the vehicle's MSRP falls within its class. Cheap-for-class and high-scoring vehicles get the highest Value Scores. Expensive-for-class and low-scoring vehicles get the lowest.

When it's most useful

When you have a flexible budget and want to surface the standouts. The MotiveGrid Score will tell you which vehicle is best; the Value Score will tell you which vehicle is the smartest financial choice.

What it deliberately ignores

Your personal budget. The Value Score is a class-relative measure — a $90,000 EV with a strong Value Score is good value for a $90,000 EV, which is still $90,000.

The Provisional Flag

A vehicle is marked “Provisional” on the safety pillar when its model year has not yet been crash-tested by NHTSA or IIHS. This happens often with brand-new 2026 and 2027 model years that arrived too recently for the testing agencies to publish ratings. When safety data is incomplete, we cap the safety contribution so an unrated vehicle cannot outrank a real-world Top Safety Pick. The flag goes away automatically once crash-test data is published.

What the Score Doesn't Tell You

The MotiveGrid Score is a strong starting point, not the final word. Several factors intentionally fall outside the model — they matter to your decision, but they can't be honestly summarized into a number that applies to everyone.

How it drives

Steering feel, ride quality, seat comfort, throttle response. These matter and you should test-drive. They're also subjective enough that we won't pretend to score them.

Styling

Whether a vehicle looks right to you. That's your call.

Resale market for your specific year

Our depreciation model uses 5-year averages. Local supply, color, options, and timing can move actual resale value by thousands of dollars in either direction.

Your individual insurance quote

We model what the vehicle contributes to insurance cost. Your driving history, ZIP code, credit, and chosen coverage limits will produce a quote that may differ materially from our baseline. Always get real quotes before purchase.