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The offspring of collaboration between Corvette performance guru Reeves Callaway and designer Paul Deutschman, the Super Speedster LM is an astonishing step up on the original Speedster, taking full advantage of the ZR1’s Lotus-engineered, all-aluminum DOHC engine and 6-speed manual transmission. One of only three twin turbocharged and intercooled LT5 engines built by Callaway, it delivers a pavement-shredding 766 HP.
As early as the late 1990's, San Francisco based coach-builder SV Motor Company envisioned a car that took the raw performance of a Corvette and refined it with a touch of Italian flair.  Their vision was to infuse many of the design elements found in the Alfa Romeo 8C Competizione (from which the SV 9 clearly drew its inspiration, as well as its name) with a 2009 Chevy Corvette.
Based on the Corvette Z06, this new GTR also represents a collaboration between Specter Werkes and Lingenfelter Performance Engineering, with a Lingenfelter twin-turbo system powering the car – and pumping its 7.0-liter LS7 engine to 800 horsepower. Featuring dramatic bodywork and carbon fiber details, the GTR blends racing-inspired design cues with uncompromising luxury and performance.
When Chevrolet changed gears to the LT1 engine, Callaway revealed their new SuperNatural line and the CR1 based on the ZR1’s LT5. Options for the CR1 included the radical Aerobody, German upholstery and special wheels, brakes and exhausts. The CR1 used a larger displacement to produce either 475 or 490 bhp.