Some users confuse license keys with "unlock codes." While a license key installs the game, internal "cheat codes" (like Ctrl + Shift + U ) are used to unlock all vehicles once the game is running. Summary of System Requirements
was delisted in 2013 due to expired licenses for the real-world cars it featured. Because it was removed, unused Steam gift copies and license keys became incredibly rare. : Unused giftable copies of
: The most reliable way to get a valid key is by purchasing a physical DVD-ROM