Bought an '05 CTS 3.6L Sandstorm about 2 weeks ago. Love the car so far. Not many american made sedans out there that are actually fun to drive. Just checked gas mileage at 22.4 mpg combined city hwy. Not bad considering the power and fact I have been getting on it a bit. I like the fact that everyone and their brother doesn't own one. My previous car was an '00 Impala LS which seems to be as abundant as a Camry, not to mention boring to drive. Not too crazy about the steering wheel controls as they control things I dont care to control from those locations. Only issue I see so far is a clunk or bump type noise in the front end at highway speeds when hitting overpasses or pavement level changes. Reminds me of when the steering shaft went out on the Impala. Tires still have 50% wear at 17k. I just had them siped which really works well on the wet roads. Future upgrades will be a Volant air intake, billet or V grill and possible exhaust someday. What wheels look and fit the best on these cars ?