I bought my HHR for my wife in 2007 for a nice car to drive back and fourth to work. Mileage has been solidly in the upper 20s with mixed city HWY. When we are on the open highway I have gotten as good as 33 but stick around 31 most of the time. The car is solid it is just a base but the auto start was a deal setter for my wife. Great little car. But just a few weeks ago i got a safety recall on the little beast. Come on GM get your heads in the game. This final recall is the last nail in the coffin for my GM purchasing days. I just bought a Ford fusion for myself. And my wife pretty much stole it from me. Looks like GM just can't seem to build something with out needing to recall it.
Auto start. Gas milage on the highway. Ability to haul anything that an SUV can with twice the mileage.
ABS avail on the lower models. Nicer rims std not hub caps. More gears in the tranny. Less plastic more soft touch materials. Better city mileage.