SuperGT’s are hard to find in Grand Theft Auto 4. You can get one by doing the Most Wanted mission in Algonquin and killing a few of the gang bangers at the bowling alley. If that’s too difficult for you, you can make one appear in front of you with this phone number cheat code for the Xbox 360 and PS3.
1. Take out Niko’s phone.
2. Dial: 227-555-0168 (CAR-555-0168).
Now a SuperGT appears and is yours for the taking.