Click on the car that drives around the best to be the seed for the next generation. After a while of picking the best car, the cars should get better at driving around. Press Space to pause and unpause the simulation. Press R to randomly generate another batch of cars. You can use the arrow keys to move around one of the black cars and test your driving skills against the other cars. Move the mouser over a car to see it's rank, id, and how many laps it has completed. The car with the blue circle around it should be the car in the lead, although it does not always select correctly.