OK. I see you people get mad about ideas and such, let me clarify what I'm going to do (or is already done):
• Two chassis - one for Fiat and one for Abarth (with stripes) (at least for now, I might also do 595, as it shares bodykit with Esseesse)
• All Forza Motorsport 4 bodykits + maybe some wide body kits
• Maybe custom suspension (probably retexture)
• Maybe custom engine (probably single piece)
What I don't mind doing though are all wheels available for 500 from both Abarth and Fiat.