The TrueEV canonical spec
EV manufacturers don’t use the same test conditions, and reviewers don’t either. TrueEV publishes one specification and reports every vehicle against it. There are exactly three numbers per vehicle.
1. Roadtrip range
Models a single highway leg between fast-charge stops — not a full pack from 100% to 0%.
Constant 70 mph cruise.
Measured between 80% and 10% usable battery. Skips the bottom of the pack (where some cars derate) and the top (where charging tapers and most road-trippers unplug).
Reference ambient temperature: 10°C.
Output: miles per leg.
2. Charging time, 10–80%
DC fast charging at the highest power the vehicle accepts.
Battery preconditioned to its target temperature on arrival.
Output: minutes.
3. Charging curve snapshot, 10–50%
Same conditions as above — isolates the high-power region of the curve, which dominates real road-trip stops.
Output: minutes.
No anchored baseline
TrueEV does not designate any single vehicle as the “reference car.” A measurement standard shouldn’t define itself relative to one product on the market — that imports brand bias into the protocol. Vehicle pages report absolute numbers only.
When you compare vehicles on the comparison page, the best result in each row is highlighted within your current selection, and percentages describe the gap to that best — never to a third car you didn’t choose.
Pre-standard dataset
This release does not contain proprietary measured data. Every value is a modeled estimate built from aggregated manufacturer specs, independent reviews, and curve-fit approximations. We label this clearly on every page and on every metric.
A standardized independent EV testing protocol is under development. As real measurements arrive, vehicles will flip from “Estimated” to “Measured” one at a time.
What's deliberately not here yet
Temperature-scaling curves.
Per-speed efficiency models.
User scenario calculators.
An “asterisk system” for behavior traits (winter range falloff, charge-curve shape, regen behavior).
These are intentionally deferred. The first job is to publish three consistent numbers per vehicle. Everything else builds on top.