They are crappy cars based on the Chevy Cobalt. This is what consumer reports has to say about the 2009 mode..."The HHR shares the same platform as the Chevrolet Cobalt. It has easy cabin access and a flexible cargo space, with split rear seats that fold to create a generous and flat load floor. The ride is comfortable enough, and handling is secure but not agile. The HHR feels lethargic because of the tall gearing and the slow response of its automatic. We got 23 mpg overall with the noisy 2.4-liter engine. Visibility suffers because of the short windows and thick pillars, and interior quality is unimpressive. The rear-wiper switch is poorly placed. Thankfully, the window controls have been moved to the doors and all models have standard stability control.
Highs: Access, cargo flexibility, standard ESC.
Lows: Visibility, controls, driving position, fuel economy, turning circle".
One last mention...Only 63% of owners said that they would buy another HHR. That's significantly lower than average (73%).