They are a good compromise on style and practicality. 17's look like the Hindenburg is strapped under the car as tyres 18" tyres will handle gravel roads well enough. Firm up the ride and still look cool enough. 19's 20's yeah they look good but the price of rubber to replace them is pretty steep. 17's and 18's much the same in price for tyres. expect of course to pay more but it isn't a steep amount more.