The damage is limited to only cosmetic or nothing. Not really negative or positive, just saying.
The EVO was ridiculously grippy with all assists off. Not sure if that was the EVO's setup or what. The off-road was awesome but nothing else held my attention. I played it for an hour then uninstalled it.
The fact that the BRZ is going to be ingame is nice but not enough to make me think about buying.