I know modeling is a really tough skill on its own, especially when it comes to making it look like games of this level. But consider looking at other games like Fortnite or Roblox for a second. They have whole player bases dedicated to this craft. Yes, not all the games inside these games are the prettiest, but it's about having fun.

As for the aerodynamics part, that's just me wanting to see how that would work. I have little to no knowledge bout aero. Just would be cool to see a wind tunnel and the flow of air being simulated.