OK this may be a dumb noob question, but on a longish drive in NE via I-80 recently I noticed a fair amount of vibration both on the steering wheel and from the body. Now normally I would attribute this to our horrendous roads, but this stretch of asphalt was laid this spring. It is a 2012 WRX Premium with 17K miles. No problems with braking or turning. Fairly new Fuzion tires with most of tread. It seems more noticeable at 75-80 mph than less.
By comparison, with my previous ride, BMW Z4, I felt every rock on the road, so vibration was not really noticeable in the context of a really rough ride. On my fiancee's Chevy Avalanche there's similar vibration, but then that's a truck.
My guess is it's coming from the tires and road plus minus some engine noise. I previously had a Honda CRV that had horrible noise and vibration that went away when I got new tires (though previous Goodyear Triple Treads were only about a year old--bad experience with these tires). And I know Fuzions are not top-quality tires.
Any thoughts? Is slight vibration par for the course with this car at higher speeds?