Interesting, it feels like a shoot-em-up or arcade game but with a third dimension! I really like the concept, though definitely jumping could be polished, it feels a bit hard to line up at the moment. The cars move a lot horizontally, but they aren't really a danger if you're trying to avoid them, so it could probably help to speed up the entire game - that is, jumps are faster, cars also approach faster, and also add some progression - more cars as go on. I also think the amount of available jumps is pretty low compared to how many cars there are. But the idea is really cool, and I would like to play more games like it in the future if you continue!