I bought my HHR in May 2009. I have only had it for 6 months, but I have had no problems and I can get up to 40 miles on highway. Maybe thats be cause I drive a stick and I do drive a ways back from semis to cut the wind shear. I love my car. Only complaints is the arm rest seems to high, I can't stand that my window controls are in the middle, and the little windows make me feel like I don't have enough visibility. To many blind spots.