My car is currently riding on 245/35/19 with Eibach Sportslines. It feels like a stage coach on cobblestones around our decrepit HR roads. I would love to not have to pay attention and dodge every pothole while still being able to wind up the on ramp as hard as I want.

So I thought about adding more rubber to the tires - hence trying to buy new/used 17"-18" rims. My Altima is fairly flexible in what will fit in wheel wells I just dont know if I should get 17" with like 55-70 rubber (if that will even fit) or stick to something like 225/45/18. I am definitely getting something besides 245/35/19 as replacing those is pure rape $$$ wise.

Any suggestions ?