After wanting one of these for years I was finally able to purchase it in Chicago. Fully loaded, with the performance tire and aero package! It's a one owner, that was meticulously cared for I looked for over 2 years for the perfect one and this was it. It's as new as you could hope to find for a used car. Came with a 2 Inch thick binder full maintenance records (a must). With that being said, the one record that stood out was all of the tire purchases over the years of their ownership. I Drove the car 6 1/2 hours back home and boy was I glad to get there. The tire hum/vibration coming from the front was almost unbearable. I chocked it up to maybe the tires not being rotated on schedule and decided to purchase 2 new tires for the front ASAP. I have had the new ones on now for less than 100 miles and the passenger side already started feathering. So I figured it was an alignment issue, had the alignment checked, which was really dead on but had it done anyway, and no issues could be found with the suspension during their inspection either. Decided okay, must be the tire or the rim so I swapped the front right with the left and in one (1) day (20) miles it too has started to feather and I still get the same hum/vibration feel and noise. Seems to coming from the passenger side front. The noise and vibration is pattern like in nature. So I decided hit the good ol interweb to research this and find that I'm not alone. Seems a good many of owners complain about the very same thing which is a very common issue with the G35 and it's cousin the Nissan 350z. Apparently, it's acceptable and you're lucky if you get 12000 miles out of tires and the noise and vibration is just one of those things owners have to deal with. I'm sorry but I find that to be unacceptable! I understand there's maintenance cost involved in owning a car, new or used but tires are not cheap in the first place and having to purchase a performance tire to boot only stings the pocket that much more. Infiniti should really look into this and find out what the real problem is and fix it. One shouldn't have to worry about tires going bad so quickly, having their driving experience hindered by such terrible ride noise and vibration, much less have to worry about budgeting for a new set of tires each year or sooner. I'm actually surprised this hasn't been reported on here yet. We live in a world now that if the reported EPA is just 1 mile off, the manufacturer is ordered to reimburse owners (look into the Buick Enclave settlement) and yet, having tires that are prematurely wearing due to a manufacturer issue nothing gets done. I'd gladly take the mileage discrepancy over this mess.