Formula1cm

Formula1cm is a (Print and Play) paper&pencil racing game where you challenge one or more opponents in a one-lap Grand Prix.
Each race is a 2-player race, but you can also play solo, against the clock, or against more opponents in a World Cup championship. 
During your turn, you must pick a movement value, choose the best path, and mark (with a little dot) the new position of your car.
You must guess your movement value (in centimeters) "by eye," and if your opponent is unsure, he can check your move with the ruler; if you make a mistake, you lose the engine, tyres, and you get penalties.

—description from the designer