While the game is no longer sold physically, digital keys exist on third-party marketplaces. Do not use keygens—99% of them contain malware. Your best bet is an abandonware repository (check your local laws) or a purchased second-hand copy.
The game has a bug where modern CPUs (with more than 4 cores) cause stuttering. Fix it: Installation Cd Key Xpand Rally Xtreme Cheats
However, the most reliable method for Xpand Rally Xtreme involves editing the game configuration file to unlock content, as direct "console commands" are not the primary method for this specific title. While the game is no longer sold physically,
For the GOG/Retail version:
Since you are searching for "Cheats," you likely want dominance over the AI. Here are advanced physics exploits. However, the most reliable method for Xpand Rally