I am a police officer, and I was issued an '06 impala 3 years ago. I have easily put 2700 hrs sitting, driving, and idling in this car. With stiffer suspension, and different seats this is a stock LT with the 3.9 liter engine. It rocks! I have gone though 3 front brakes, 2 sets of tires and a trany line at 85000 miles. Other than that, I have had nothing but regular oil changes. I drive this car very hard everyday! I still have it, and it has 91000 miles on it. As it is due for retirement very soon, I thought I would give it some props. It still has the giddy-up to get the speeders out there, and I am still comfortable in it. My wife and I are looking to buy one now, great car!!!
The power! I didn't pay for gas, but I would average 15 MPG city 28 hwy.