My mileage numbers were based on the stock wheels - 165/80 13"s
I put the 15"s on there, drove it for a few days and pulled them right off. Larger wheels severely hurt a small car like mine. The car felt heavier, it coasted less and it was much more difficult to steer. I'll take thinner wheels (with safe weight distribution tolerances) any day.
Function > Form until Function == Form.
Form > Function == salesman/marketing.
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