Where Autocross Digits Will Work, and Where They Won't

Autocross Digits will make you look like a pro at the races, but not every car is compatible with magnetics.

It may sound like common sense, but it's easy to forget that magnetics only stick to steel! You'll be disappointed to find out you've ordered a killer looking set of numbers, only to find out they won't stick to your car because it's fiberglass, aluminum, or carbon fiber. Cars fitting this classification include Corvettes and the Lotus Elise. Don't despair though - most cars work just fine with magnetic numbers!