I hope you can help me with these 2 games,
1: I remember playin a mini car game in like 2008 that had 3d graphics but it had a weird view. the view was similar to this one: https://itunes.apple.com/app/reckless-racing-2/id476274173?ign-mpt=uo%3D6&mt=8
You started with a really bad car and then you upgraded it with weapons and defenses systems like oil, glue, so you could destroy the other cars. i think that if you hit a car it also damages you or the other car, same for hitting walls. i remember a pickup truck and a sports car that was the most expensive, but there were about ten cars. you also could change their color.
it had also local co op multiplayer and custom races
the game came in a cd with more games for demo, and i remember the cover to be really colorful with yellow letters.
2: the second game is one of the games that came in the cd. it was a spaceship side scrolling game, like r type, but it had pretty decent 3d graphics, and it had LOTS of upgrades.
i hope you can find at least one of them, then it would be easier to find the other