yeah probably for the quicker steering but anyway in a year from now im sure ill be able to get some 17 inchs used from somebody..........i dont really like the inside of the car if its not leather, i think the steering wheel feels pretty cheap.....
I like the feel of a leather-wrapped steering wheel... Just rememebr that the nav unit is calibrated to the 15" alloys so you may end up with slightly different nav ETAs and calculations if you swap to 17s. I'm sure you can recalibrate it but I'm not sure how.