SEMA Preview: Chevrolet debuts quartet of custom Camaros

Despite the fact that it's the Official Vehicle of SEMA, the Chevy Camaro will not be present in large numbers this week at the largest automotive aftermarket show in the world. That's because, unlike the Dodge Challenger, the Camaro is still a few months off from being delivered to showrooms (though orders are being accepted). Because of this, Chevy itself will be carrying the custom banner on behalf of the Camaro and has debuted four concepts today we'll see in person on Tuesday at the show. The first is the Camaro LS7 Concept inspired by the COPO Camaros of the late '60s. It features the GM Performance Parts LS7 Crate engine tuned to produce 550 horsepower thanks to a number of GMPP performance accessories. A Tremec six-speed manual handles shifting duties and is backed by Brembo brakes, 20-inch custom wheels and a lowered ride height. Next up is the Camaro Dale Earnhardt Jr. Concept, which was actually produced with input from Jr. himself. The base car is a Camaro SS tuned to drink higher-octane E85. The exterior is a nostalgic gray-over-white paint scheme with 21-inch five-spoke wheels, a dovetail spoiler and other Chevy Accessories exterior mods. For real race fans, the Camaro GS Racecar Concept should conjure memories of Mark Donahue's blue-and-yellow Trans Am Series Camaro. This modern interpretation features a carbon fiber hood, trunk lid, doors and fenders to keep weight down and is powered by a production LS3 V8 mated to a Tremec 6060 six-speed. A 3-inch exhaust with Coast Fab mufflers, C&R racing aluminum radiator and coolers for the engine oil, transmission and differential round out the racing pedigree. Last and perhaps the fiercest is the Camaro Black Concept. The stealthy exterior is comprised of a matte black hood, tinted glass, HID headlamps with red "halo rings", a darker grille, dark-tinted taillight lenses and... you get the idea. The interior has likewise been blacked out and even the 21-inch wheels feature a darker finish. Unlike the others, this Camaro is powered by GM's 300-hp 3.6L V6. Check out all four concepts in our gallery below, as well as a range of new Camaro accessories and performance parts that will debut this week at SEMA. Gallery: SEMA 2008: Chevy Camaro Concepts and Accessories [Source: GM]