There 2 clear differences between FlatOut 1 & 2 and Wreckfest.
- FlatOut 1 & 2 are focused on street racing and track racing. The cars are more rally and for speed.
- Wreckfest is focused on folkrace. The cars are focused on just that.
I truly understand why Bugbear did not added nitro to Wreckfest. Sure, I miss having nitro to just slam into the AI and have a really good time (also to enjoy the damage engine), but I find it much more realistic and challenging in a good way, with having no nitro. Wreckfest have more depth that way.