My husband wanted to get an HHR for me because I need lots of trunk storage to haul musical instruments. I was concerned about the gas mileage, and the style of the car. Right now, in the cold, I am getting 25 mph around town, and I am pleased with that. It handles very well in the snow. I am still getting used to the style, but so far, I like it.
The floor of the trunk can be raised so that you have storage under and over the trunk floor, for much added space. The traction control and ABS brakes give me security when driving in snow and ice. I like the fact that I sit high, like a minivan.
The trunk hatch should raise up higher. I am only 5'7" and have banged my head twice in 2 weeks. My back window is leaking water when I use my rear washer. Snow accumulates on the back door in front of the tires. I don't know what could be done about that for exterior design.