The only suggestions I have it's making Ferrari Vehicles and Club Vehicles customizable in Performance shops:
Ferrari Vehicles ,including Ferrari FXX, went to Italian performance shop
Lotus 2-Eleven went to British performance shop or British Super cars Shop (Hawaii)
Gumpert Apollo and Wiesmann MF3 went to Euro performance shop (Hawaii)
The second suggestion if were a way to get again the wreck cars in the used car dealer.
The last suggestion if were a way to add the 2008 Spyker C8 Aileron , non spyder version , into the European car dealers within non DLC cars. The one which has 5 cars on sale.
That's all
Thanks and keep working !!