Tools

Small, free utilities built from the same numbers the game runs on and the facts our articles check: work out a stopping distance on Mars, see which browser racing games suit your device, or print a co-driver card. Link to them, quote them, print them.

DOC 16.1 / BRAKING CALCULATOR

Mars vs Earth Braking Distance

How far a car takes to stop on Mars, Earth or the Moon, from any speed, on loose or firm ground — with the formula and every assumption shown.

DOC 16.2 / COMPATIBILITY TABLE

Browser Racing Game Compatibility

Which free browser racing games take a controller or touch, run multiplayer, need an account, and suit a Chromebook — one table, downloadable as JSON.

DOC 16.3 / CO-DRIVER CARD

Printable Pace-Note Card

A one-page co-driver card: corner grades, modifiers, hazards and distances, ready to print or save as a PDF.