Although the 2010 Chevrolet HHR has a versatile, roomy cargo space that can accommodate a lot of groceries or small pieces of furniture, the HHR is only fair for passengers. Headroom is rather tight, and the front seats provide a pushed-upward driving position that some drivers might like but others will find odd.
Reviewers across the board highlight the lack of passenger comfort the Chevrolet HHR affords. Edmunds finds that the Chevrolet HHR's "standard cloth buckets are not as comfortable as we'd like, but the optional leather seats are better cushioned and more supportive," while the editors from Cars.com expresses the "wish [that] the HHR had a telescoping steering column so [one] could pull the wheel closer," adding "backseat comfort is only marginal...bench seat's bottom and backrest cushions are hard and the space is legroom-challenged." Car and Driver, on the other hand, is a fan of the “sofa-like rear seat.”
The 2010 Chevrolet HHR really excels when it comes to storage space and cargo, however. Edmunds claims that "maximum cargo capacity is among the class leaders at 63 cubic feet," and Cars.com states that "considering its small exterior size, the HHR SS can swallow quite a bit of cargo." ConsumerGuide praises the vehicle's "versatile storage space," remarking, "it's easy to fold the 60/40 split rear seat backs to create a flat load floor, but front seat backs must be far forward for headrests to clear.” It should be noted that this can leave little legroom in front for tall drivers.
Interior appointments aren't anything special; there's a lot of drab plastic trim, and upholstery and materials are rental-car anonymous. On the bright side, the HHR feels tight and refined most of the time, with surprisingly little road or wind noise.
The HHR, while not winning any awards for interior quality, covers the basics. According to Cars.com, "most surfaces are textured enough to where they don't look especially cheap. SS models have slightly sportier trim that neither enhances nor detracts from the overall ambiance." Edmunds, however, notes that "window buttons are awkwardly mounted behind the shifter, and some of the interior plastics are of mediocre quality."
In terms of driving refinement, the 2010 Chevrolet HHR isn't anything to crow about. According to ConsumerGuide, "wind rush is well controlled, but engine buzz intrudes during acceleration. The turbo four-cylinder whines, even under light throttle conditions. All [Chevrolet HHR] models suffer from noticeable coarse-surface tire thrum."