i was reading somewhere the the level of damage can impact the performance of your machine. Well i did notice this. For example i baught a civic hatch to start with. 1 used 1 new. After modding and doing my custom tuning i realised the new civic exceeded 140mph fairly easy with the 290hp. The used civic had a hard time exceeding 130 with the same 290hp and same settings it just had 40 some thousand miles. Now my question is theres some obvious damage. How can i fix this with used cars and how can i see the level of damage my cars have?

I have never had a problem with buying used cars off the lot. The only time I've noticed damage was from what I'd done to the car over the course of my racing.

thanks. Yea is seemed pretty strange, theres no visable damage and 1 car ran slower than the other. When i first started out i used to like restarting a few times and coming across a 700k cp civic or 900kcp integra at the used car dealer. now i dont know they seem to be substantially slower than the new ones