This thread shares information about the progress of the Xenor C1, a car based on three cars: "BMW M5" // "Lexus LS (XF40)" // "Toyota Camry XV50" The mod is currently in pre-alpha.
To be honest I looked it up and could not find that rule. If it is a necessity I can post a picture the moment I get access to the device I have the progress on. But due to the fact that I am in school by now I do not have the ability to get any pictures.
1. Ok, thanks for the rule. 2. The Toyota and Lexus aren“t that different from the designs on the outside and the BMW is mostly for interior.