I know the the chassis and body rust is a turn off, but nothing some good old welding can't fix.
Have you seen Wangan Midnight Racing? Although Anime and Manga are a bit fictionalised, these animations actually went through some proper thoughts with advices and research coming from people who actually raced. Just like Initial D, they had Keiichi Tsuchiya as their advisor.
In Episode 8 & 9, the Devil Z (Fairlady 240Z with L28, stroked to 3.1 litres with twin turbo) crashed pretty badly. There's this old body shop guy from Body Shop Sunday, who actually taught Akio to hammer his way through steel and aluminium. The same guys in Malaysia, (Playhouse Garage) is able to fabricate a new, stronger chassis to take on the newer RB series. I know it sounds unbelievable, but these guys have been building/rebuilding drift cars for others. Bangkai_jk will patronise soon and be able to attest to their qualities at work.