Just wondering what I should get for my 2010 G37xS. Either 225/45r19 all the way around or 245/40r19's. Kinda worried about how 245/40r19 will ride and will fit especially in front. Would appreciate anyone who have either setup to comment on how they like them and what tires they are running on. Thanks.

 

If this is a coupe, either size will work fine. The 245's are your max up front, but won't really ride any different than the 225. Better wet/snow traction from the narrower 225's, better dry grip and response from the wider tires.