One thing that can really affect tire wear is the balancing. Plus any shaking through the steering wheel or seat can be frustrating and possibly affect other components in the future. If you buy a second hand car I would recommend getting the balance checked on all four wheels, and while they are on the balancer possibly check for buckled rims :) one other thing I'm not sure if you mentioned altezza, tyre pressure. Very important, but always overlooked.for anyone who is in the dark with tyre pressures, with an average size car with non low profiles, 34-36 psi is a substantial amount. Low profiles are a bit tricky, but usually anything with a 50 profile or lower, run between 36-40 psi depending on how heavy the vehicle is. The heavier the vehicle, the more pressure you run :D over and out