We bought a 2010 HHR a couple years ago. It has been reliable, uses some coolant and has issues typical of of a 10 plus year old car with now over 200k miles on it. The issue which bugs me is the speed with with it wears the tread on the front tires. When we bought it the front tires were close to needing replacement so we replaced them. The steering was great so I didn't request alignment and those tires lasted roughly one month. The alignment turned out to be off but I have never seen that much alignment issue destroy a set of tires in 30 days. I mean my wife had a flat at a gas station after tire failure and had to limp on the spare to the nearest tire shop to get two new front tires. Since then I replaced all the shocks and we are doing the alignment more frequently and the tires are lasting longer. Not long enough though. I have a 4x4 truck which gets loads more miles and alignment checked rarely and the tires last several years. I again am at the point where the tires need to be replaced. Was wondering if someone knows of an issue with these cars which causes this? Other than this I have been relatively happy with the car.