Just recently ThatAudiFan released the 1.0 of his Blancpain Sprint Series 2018 mod and the Endurance Series version is in progress. What I want to do is implement the driver classes in the Blancpain GT Series (PRO, PRO-AM, AM) by changing a cars mass. I'm 90% sure this is doable in the upgrade files by having a normal upgrade file, a PRO-AM upgrade file with some added weight and an AM upgrade file with lots of added weight. I just don't know the syntax for changing a car parameter like that. Could somebody please either show me how or point me to an example? Thanks in advance.