Why did I get banned from online features it makes no sense cuz I never mod. Plz let me know
You never what? Altering the body of a car which was being sold on the Auction House is a major offense, violation of the Xbox Live Code of Conduct beside the circumvention of the intellectual property protections by the developers.
Neither bans nor the enforcement of the regulations by employees of Turn 10 are discussed on these forums. You may send an email to them at firstname.lastname@example.org. Remember, they hold the evidence.