The car isn't fast, rally is about speed as much as it is good maneuvering, and quick thinking. Thats one race where an aveo did decent. probably because it has a good turning radius. We all know including yourself, this car is downright slow, ~105hp at the crank is nothing to brag about. If you modify it, such as turbo..ect. then you have a reason to worry about wheel and tire size, as it is now stock..you shouldn't even worry about it the difference won't matter UNLESS your doing something like rally. overall, the car looks good, and much better with 17's, but 1" smaller wheels won't boost the very little amount of performance this car already has.Originally Posted by exodus