The 0.6v release introduced significant technical improvements designed for both casual modders and competitive racers:
If your goal is general PC performance rather than specific game modding, consider these modern, safe utilities: Pro Tweaker 0.6v Download
Because this software runs with (required to edit the registry), older versions often contain unpatched DLL hijacking vulnerabilities. Antivirus programs frequently flag Pro Tweaker as a "HackTool" not because it is a virus, but because it modifies system files aggressively. consider these modern