Some features I’d appreciate might include something to race against, like either a leaderboard or AI opponents. Leaderboard would be easier but it’d be really fun ramming into opponents with the delightful physics system built.
Other than that, all the core mechanics are there. Just more content, like extra tracks and some unique set pieces would tie it together.
Also you can spin around at the start and get money over and over so that should probably be fixed XD.