09-12-2012, 11:42 PM
Well for one, it depends what profile tyres you're running as to rolling radius.
The rest is down to opinion. For me, 17's are too big for the 306. 15's suit the car better, the increase in comfort and decrease in tramlining and tyre price are positives too.
The rest is down to opinion. For me, 17's are too big for the 306. 15's suit the car better, the increase in comfort and decrease in tramlining and tyre price are positives too.