The add-on pack to Sid Meier's Alpha Centauri went gold earlier this morning. Alien Crossfire will be available in stores the week of Oct. 19. It will include seven new factions (two of which are ...

This was always available with the Crossfire SRT-6 and is actually a Mercedes AMG engine built for this car and the SLK 32 AMG Roadster, which is what the Crossfire is based on.