My friends & I really liked Codemasters "Dirt Showdown" with all the demolition derby games. Sadly, it hasn't worked on Steam for like two years now.
I'd love to see a new demolition derby car game with COOP & multiplayer that includes plenty of other fun mini-game options with derby cars like: Tag (crash into them to tag them to be "it"), Bowling - (ramp and try to crash into the bowling pins to score), Bullzeye - (ramp and try to crash on the target to score), Hockey (like Rocket League but with derby cars), Scavenger Hunt, King Of The Hill, Capture the Flag, etc ... you get the idea, just crazy madness fun with plenty of crazy ramps and tracks.
I'm also reminded of those crazy derby / races they have in the Southern US on an 8-track with trucks pulling a trailer with a boat on it, school buses, golf carts,
oh, for mobile too and in 4K at 120 fps.
If not, then, at least create a fun derby demo or something?
2006 "ATV Offroad Fury 4" had several mini-games like: Tag, Ice Hockey, Basketball, Scavenger Hunt, King Of The Hill, Bowling and Ring Of Fire.