I have checked and it is possible to have different rims and wheel width without affecting the way the vehicle behaves.
However, since you can't choose different rims for your car like in GTAV, I am not sure if I will ever change them.
Vehicles like the Patriot could look cool with off-road wheels, but not everyone will agree with that choice.
Maybe, just maybe, in the future I might provide two different downloads for my mod: one with original wheels (but paintable in some cars) and another with completely different wheels.