I read today that procar's team lamboghni is planning to run audi sadans in gtp next year insted of the vw golf's and is selling the lambogni's.
GTP is also trying to incourage these other manufactures to join
Volvo. S60 R
Renault. Clio Sport V6
Ford Focus. RS
Alfa Romeo. 147 GTA
Audi. RS4