I purchased the HHR mainly for the looks and economy. It is quite adequate in both categories. Performance is a little suspect even with the big 4 cylinder engine and the premium fuel suggestion is absurd. It runs fine on mid grade or even regular. No pinging and no noticeable power loss. It is fun to drive and handles very well. The XM radio is great but the cup holders are not very good. I am still trying to figure out what that little light next to the sunroof controls is for. All in all I am very pleased with my purchase and coming from a Ram 1500 Quad Cab with hemi engine I love being able to drive by a gas station without stopping.
Styling. Fuel economy
More power without sacrificing mileage. Cup holders