I really love the "Desert Golfing" or "Golf on Mars" vibe in this game.
However, I somehow feel that something is missing in Tapioca Rider, and it might have something to do with the score.
It might be very personal, but once I have finished a level, I don't see myself replaying it to improve my time. And thus, I lack an incentive to perform well. But "Golf on Mars" does it a bit differently : somewhere when downloading the app it says "it is a par 3 golf", ie "we are good if we finish a hole in 3 hits". I don't really care if the RNG was fair or not... I gives me a target and the incentive to do better next hole, if I screwed up before.
Also, the total number of hits is given, which helps me estimate how far I am on a large scale, from that 3 hits rule.
So with Tapioca Rider, maybe you'd get that vibe just by saying "Good drivers finish a track in 25s", and give the sum of each times up the current track at the top of the screen. Maybe with a cursor below showing a vehicle moving at your average speed in previous levesl.
At least for me, that would add a nice meta-level of gameplay and an incentive to perform well without have to replay each level to improve my score.