The design theme inside the Chevrolet Cobalt is simple and straightforward. Materials are decent and the fit and finish are good. Overall, it's comparable for the class. There's just enough chrome trim here and there on knobs and instruments to brighten things up without a lot of glare from the shiny parts. Instruments are large, well placed, and easy to read, with nice graphic treatment throughout.

The Chevy Cobalt uses different seats in the different trim levels, each with detail changes in foam, padding, and trim. We found plenty of fore/aft and rake adjustment for a 6-foot, 4-inch driver, plus seat height adjustment with a ratcheting handle. The Cobalt LT's seats were very comfortable and grabbed us in the fast corners exactly where we needed to be grabbed and held. Even better were the optional leather-trimmed seats, which come with electric heat.

Inside the SS are sport seats embroidered with the SS-logo and enhanced with suede-like UltraLux inserts. A specific gauge package includes an A-pillar-mounted turbo boost gauge.

The available Pioneer seven-speaker sound system with the Delphi AM/FM/CD delivers good sound and includes a huge subwoofer mounted on the left side trunk wall. And all Cobalts come with XM Satellite Radio.

The heating, ventilation, and defroster system worked quickly and intuitively.

Base and LS models come with manually operated windows that take a lot of cranking (about four and half times around) to wind the windows up. The urethane steering-wheel that comes on non-SS models feels cheap. The leather-wrapped wheel that's optional on the Cobalt LT is much nicer.

Rear-seat passengers pay a price for the coupe's sporty looks. Headroom, legroom, and hip room are reduced by 2 inches, 1.5 inches, and 3.5 inches, respectively; enough to make the difference between a comfortable place for adults and one best left to pre-adolescents. Up front, the coupe actually offers more head and legroom than the sedan, but only by fractions of an inch. Therefore, the coupe is a good choice for drivers who are usually alone or with a friend, while the sedan is the better choice for drivers who often find themselves with two or three passengers.

The trunk in the sedan is wide and deep with a low lift-over height, and almost 14 cubic feet of capacity, more than competitive in the class, though the opening to the trunk seems relatively small. The trunk lid uses outside corner hinges and two hydraulic assist struts instead of gooseneck hinges that can squash groceries when the lid is closed. The coupe has the same trunk volume but an even smaller trunk opening, making it difficult to stow a thick suitcase. A 60/40-split, fold-down rear seat with a trunk pass-through feature adds utility to both sedan and coupe.