I'm considering 2 lightly used 2018 330i xdrives. One has the standard 17" wheels, the other the optional 18" wheels. Because larger wheels and tires mean more unsprung weight, should I as someone prone to autocrossing, go for the 17" 330i?
The 18"s come with 225/45 tires while the 17"s have 225/50 tires, so a bit more rubber between the wheel and the pothole it is banging through
Might as well ask, too: Anyone try autocrossing their 320i or 330i xdrive?
Last edited by SteveMD; 07-08-2018 at 12:31 PM.
All things being equal the 17" tires will ride better, and 18" wheels will handle better. If you are going to autocross you will like the 18" wheels.
Thanks, John#. Have a great week.
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