Can TA style spoilers/wings etc negatively affect a car at highway speeds?

Posted by Fullyarns@reddit | projectcar | View on Reddit | 7 comments

I’m toying with the idea of building a cosplay racer, just a stock standard car but with full massive time attack style bodykit on it.

Aside from worse fuel consumption from the unneeded drag, at normal highway speeds would it affect the car in any bad or possibly dangerous way?