Only one wish: make the track larger. And any tips what the controls are.

Is there anything to motivate the player to perform well on the first lap? You don't seem to lose fuel by standing still so can't the player just wait around for a long time in order to make it easier to get as many laps as possible? Which sure, that's tedious, but it is technically the best strategy. Then as long as you select the fuel recharger you'll never run out of fuel?

Honestly a really inventive and interesting idea!
The idea of racing against yourself might be less motivating for some.
The upgrades feel a bit underdeveloped in some cases (the repair one would serve more purpose if impact damage was I higher though).

All in all, I would love to see this taken to a fully realized "roguelite" car game!

Good job!