It seems like more should change than just the shape. I'd wager that a slower car with more power may be less likely to get stuck in ruts. But it seems that the

It seems like more should change than just the shape. I'd wager that a slower car with more power may be less likely to get stuck in ruts. But it seems that the power and speed don't vary, just (barely, after a few generations) the shape. Edit, I scrolled down and it covers the genome: • Shape (8 genes, 1 per vertex) • Wheel size (2 genes, 1 per wheel) • Wheel position (2 genes, 1 per wheel) • Wheel density (2 genes, 1 per wheel) darker wheels mean denser wheels • Chassis density (1 gene) darker body means denser chassis It basically lands on a two-wheeled medium-bodied shape and doesn't seem to make much progress after that. Power and speed would be interesting variations.