We purchased my 2008 HHR used, it had 25,000 miles on it. Have not had any major issues. Just had a few minor bugs. I must have a lighter foot than some in rural and city driving I avg 26 mpg and on the highway I avg 32. I traded a Mazda 626 in I was looking for another Mazda but was none in stock. Glad I made the switch GM got me back after 20 yrs of owning Dodge and Mazda. I am thinking of going to the SS HHR.
Excellent seating like being in a pickup. Love the leather. Love the retro styling looks good sitting next to our 1950 Chevy Pickup.
Winter traction has a lot of room for improvement. I guess having the wider sport tire is the issue there. So I have come to the conclusion on snow days I just take the 4 wheel drive truck.