Based on GM's new rear-wheel-drive Kappa architecture shared with the Pontiac Solstice and Chevy Nomad, the Saturn Curve concept is evidence of Saturn's evolution, both in styling and product. Built from fiberglass panels over a steel tube structure, and featuring roof pillars concealed by a wraparound canopy of glass to create the look of a "floating" roof panel, its design abounds with interesting details that emphasize its contemporary design aesthetic, as well as its sports car roots. Sporty performance is provided by a supercharged 2.2-liter/200-hp Ecotec four-cylinder engine paired with a Getrag five-speed manual for an engine/transmission combination similar to that found in the new 2004 Saturn ION Red Line. Unique seven-spoke 20-inch wheels are mounted to performance tires, while large, 14-inch brake rotors with twin-piston front calipers and large, single-piston rear calipers, provide the vehicle's stopping power. The powertrain, chassis, and brake system are based on existing production components, which makes us wonder just how close to production the Curve really could be...