Pontiac turned the Solstice into a stripped-down, nostalgic one-seat race car with this concept, eradicating what limited functionality this model has in production form. The SD-90 has a roll bar, a motorcycle-style windscreen, chrome fire extinguisher, a removable cockpit cover, and a removable steering wheel. The concept vehicle is powered by a 2.0-liter turbocharged four-cylinder engine and rides on Hoosier R6 racing tires. This Solstice was a showstopper at SEMA, clearly drawing a crowd. I'd welcome some of the old-school charm, especially the vintage-looking flat hood and the unique front fascia, in a future model variant. Of course, we'd also welcome more storage space, improved fit and finish, reduced noise, easier-to-use controls, and improved driving position.

—Cliff Weathers

View our Solstice video. Discuss the Solstice SD-290 concept car in our Auto Show and Pontiac forums.