07 IS350 has summer tires on it. Got it from San Antonio last week and they simply will not work in the KS winter. I'm looking for some good A/S tires, and have been really looking at the Bridgestone 960AS and the Goodyear F1s. What's the question you may ask.....well the 960s don't come in a 255/40/18 for the rear wheels. I'm wondering if anyone has put a 245/40/18 on the rear wheels on the 18" staggered setup on a 350. I guess my biggest worry is the sidewall height and how that could affect the car's comfort, handling, and how it sits.
I have considered getting winter tires, but I'm not really up to having 2 sets of tires and really don't have anywhere to keep them during their off-season.
If anyone has any input on this one I would greatly appreciate it.
Thanks in advance.
Also, if you have thoughts or opinions on the F1s, holler, I have heard they have some awful road noise problems.