You mentioned two of my favorite Commodore 64 games! Let's improve this game first, and then who knows! I'd love to create a pseudo-3D game for the Commodore 64.
Improve this one? It's already quite good and reminds me of Super Monaco Grand Prix from the Arcades. Well, imagine approximately 40 years ago, there have been quite good 3d like games already on the C64 and super smooth as well. I played Pitstop 2, Super Cycle and then there was The Great American Cross Country Road Race. Really cool games on the C64 for that time. Good luck with your projects!