Go to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Activision\Blur (or the folder corresponding to your specific installer).
It looks like you’re referring to – the 2010 racing game from Bizarre Creations (known for Project Gotham Racing ), which combined realistic cars with arcade-style power-ups.
If you own the game on Steam, you can right-click it in your library, go to Properties , and select English from the Version Stability For the best experience, ensure you have the official Blur Patch 1.2 installed, which is available on PCGamingWiki
Your "experience" level; higher levels unlock better cars and "Mods."