Show HN: Train racecar neural networks in the browser

This is small site where racecars learn to navigate a racetrack.

Each racecar has a randomly initialized neural network, receiving input data from distance sensors. In each round the best performing racecars are selected to generate the next round. Cars hitting the wall are instantly disqualified.

It takes a while to train them (I think they could do with fewer neurons), I included a pre-trained network for you to try.