Make your cars wheels as big as a house.
When you enter the cheat to make your wheels bigger it will make them just a bit larger, but if you want them monster truck size or bigger 1st when you get done entering the cheat go back to the saving spot and save 2nd ......when you have already saved the game press 'start' and pick the file that you saved the cheat in then re-enter the cheat and the tires will get bigger repeat the 3 steps to get them bigger.
Only sports cars can get the big tires example.
Cheatah,pheonix,infurnus, What I noticed is that the rancher and the corvette don't get bigger tyres they get LOTS of power.
We have more cheats and tips for this game here, Grand Theft Auto: Vice City cheats
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