In-house tuning manufacturers:
- AMG (Mercedes)
- GT (Porsche)
- GTI (Volkswagen)
- M (BMW)
- MR (Mitsubishi)
- Mazdaspeed (Mazda)
- NISMO (Nissan)
- R (Volkswagen)
- RS (Audi)
- Saleen (Ford, Chevrolet, Dodge)
- STi (Subaru)
- SRT (Dodge,Chrysler)
- SS (Chevrolet)
- S (Audi)
- SVT (Ford)
- Type-R (Honda)
- TRD (Toyota)
- Turbo (Porsche)
- Z06 (Chevrolet)
- HSV (Holden)