Need an advice on game

I started to play CMS in PS4 this week and I should admit that I'm a little bit addicted. Hehe.

But, I wanna know. There is any way to fix a barn bought cars without use new parts ?

Yesterday I assembled an entire engine from zero, and that consumed a lot of money.

I'm starting to think in buy a PC to play the newer ones CMS just because there is a lot of scenarios and options.