Rainline
Rainline is a hot-lap racer that runs in a browser tab. One circuit, three laps, and your own ghost to chase.
Rainline is a free racing game that runs in your browser: a hot lap — a time trial — rather than a race against a field. One circuit, Harbour Nine, nine corners through a wet harbour district after dark, and one thing to do on it. Go faster than last time. A lap takes about 45 seconds once you know it.
Your best run stays on this device and returns as a ghost — a translucent car driving your old lap beside you. The number top right is your gap to it at the last checkpoint.