I know which one you mean. It was tuned specially by PD for that special event. However, I reckon you could recreate it with an SLS and the right paint scheme, aero parts and tuning.
Aw that car was a beast. Handling was perfect. AMG are awesome at tuning. Be good to have them as DLC or GT6. Brabus too, they're crazy though. Over 1000 torque in the SL lol