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A GPS speedometer that reads true speed rather than your dashboard’s optimistic one, plus speed camera and traffic-signal locations along your route, a full record of every drive, and where you rank against other drivers.
What it does
Speed read from satellite positioning, not the wheel-speed sensor your dashboard uses. Average, top, distance, altitude, duration and time stopped for every drive.
Speed camera and traffic-signal locations plotted along the route you are driving, with a countdown as you approach. Coverage depends on the underlying location data.
Every recorded drive kept in one list with its own stats, so you can compare a commute week to week instead of guessing.
A global leaderboard by top speed, distance and trips, plus a profile that carries your own records.
Preview paint, wheels and body kits on your own car with AI, and keep the results in a garage on your profile.
Post a drive or a car, follow other drivers, and see what they are building.
Under UN Regulation No 39 a car’s speedometer may never read below true speed, but it may read up to 10 % + 4 km/h above it. GPS has no such licence.
Guides
The 10% + 2 mph threshold is real, it is confirmed in police disclosures, and it is not a legal entitlement. Here is what the guidance says, who sets it, and why it can change without notice.
Nineteen states and DC permit automated speed enforcement, ten prohibit it outright, and twenty-one have no law at all. What that patchwork means for a driver crossing state lines.
Car speedometers are legally required to over-read. UN Regulation No 39 sets the exact allowance — up to 10% plus 4 km/h — and explains the gap between your dashboard and a GPS speed app.