I remember one race game. It's not for PC. I played it in school.
How to play:
1. Build a "map" on the table. You can use pencils, books etc.
2. Insert a quite strong magnet inside this car. We used magnets from old HDD's
3. Use second magnet as a controller. Attach it to bottom side of a table and you can race.
This game for 2 players.
Damn, i have strong nostalgia right now.