« Reply #36 on: 06 September 2011, 17:40 »
Thanks all. The other thing I don't understand is the fixation with wheel sizes - that a larger tyre size can make the car perform differently in respect of performance and comfort. Any comments again appreciated.
Apart from maybe a bit of extra width there isn't that much you change with the wheel and tyre combo. The bigger wheel you fit just means the sidewall of the tyre is smaller as the overall circumfrence of the wheel and tyre has to stay more or less identical.
A 16'' wheel will give you cheap tyres and a more comfortable ride (assuming you don't fit really wide 16'' tyres) and better fuel economy (less drag and weight) whereas a 19'' wheel will provide you with hideously expensive tyres, sharper steering and a choppier ride quality. 17'' and 18'' with be in between those two extremes.

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