I rated this car on 4/28/09. During routine oil change at dealer, they pointed out the head gaskets & crank gasket were leaking on 3.5 liter. It was all replaced under warranty and they gave me a loaner. The honeymoon phase is over. It is still a practical vehicle with awesome hwy. mileage. I find the quietness of the Impala therapeutic for my commute home. It's an almost "Zen-like" feeling of peace when I tune out the chaotic world in my car with XM radio. Even with radio off, its just a quiet and solid car.
Love beige leather, sat. radio, folding back seat, & E-85 compatible. I'm happy with the car. Disappointed with gaskets at 21,000 miles but GM made it right. At least gas pedal doesn't stick.
When directing heat for "just feet" a percentage of heat still comes from vents. I have chronic cold feet and like to have it blow only low. But my head gets hot. I have the vents closed but still feel some heat directed toward my head. It's probably only me with these darn cold feet.