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Built for outright top speed, this prototype Corvette was built by Zora Duntov. He successfully piloted the car to a two-way average speed of 150 mph in January of 1956 at Daytona. Later two more similar cars were built for the 1956 Daytona Speed Weeks in February. After initial resistance from Engineering, Duntov’s cam was delivered to the Proving Ground.
GM’s 1950s Motorama-mobiles were mostly pretty out-there, with flamboyant fins, rocket-inspired skegs and cockpits, and other flights of wild imagination. Frankly, many of them were a bit absurd and even childish. But there were a few that were somewhat down to earth, even rather brilliant, like this 1955 Chevrolet Biscayne.
This one-off 1961 Vignale Corvette was built for the 1961 Salon de l'Automobile in Paris, France. It was based on a 1960 Corvette chassis and built by Italian coachmaker Carrozzeria Vignale. The body was designed by Gordon Kelly.
Chevrolet Corvette Coupé, 1957, by Ghia Aigle. Designed by Giovanni Michellotti a one-off built on a ‘54 Corvette chassis by Carozzeria Ghia in Switzerland. The Ghia Corvette was powered by a Blue Flame 6 in-line engine with a 4-speed manual gearbox
The Corvette SS began life as an experimental race car, and was unveiled to the public at the 12 Hours of Sebring endurance race on March 23, 1957. The SS was in training for Chevrolet's debut at LeMans that year. The Sebring race was, in many ways, Chevrolet's inauguration into modern racing. But the SS never finished the race, much to the dismay of the racing community.
Carl Renner was responsible for the Nomad which was essentially a Corvette built with an extended station wagon roof. This meant the Corvette shared its lightweight fiberglass body, ‘Blue Flame’ inline-6 engine and curvaceous styling with the Nomad.
1964 Chevrolet CERV II Corvette
The CERV II was entirely Zora’s car. The CERV II was conceived early in 1962 and developed over the next year, after the GS program was squashed. The car was built under Zora's direction between 1963-'64. Zora had it in mind to develop a separate line of racing Corvettes but the idea got terminated by management.
1959 Chevrolet Corvette CERV 1
The “CERV-1” (Chevrolet Engineering Research Vehicle) was developed as a research tool for that company’s continuous investigations into automotive ride and handling phenomena under the most realistic conditions. The car was built at the Chevrolet Engineering Center at Warren, Michigan in a special project headed by Mr. Zora Arkus-Duntov, Chevrolet Staff Engineer.
Corvette XP700 Concept
Designed and built under the personal supervision of Bill Mitchell, the wild-looking XP-700 used many regular Corvette components (frame, chassis parts and engine). Bill Mitchell had a lot of “customs” built for himself. This XP-700 previewed the new tail of the upcoming 1961 Corvette.
When first introduced to the world by Pontiac in 1964, the car showed so much promise that Chevrolet (allegedly) put a swift end to its development to prevent its production from hindering the sales of the Corvette.  Afterall, with the introduction of the 1963 Split-Window Corvette, Chevy was finally seeing an increase in sales, something lacking for most of the first-gen.
The Manta Ray was actually the 1965 Mako Shark II (XP-830) with a few upgrades, so it featured many of the Mako II's outward features, such as side exhausts and a lower-body (along the rocker panels) silver paint job. The front end had a pointed chin spoiler and the headlights used 2 banks of 3 quartz-halogen lights.
In late 2007 Corvette Europe approached the FIA seeking approval to race a C6 Coupe in the GT4 category.  After much study the FIA approved their request.  Kroymans shipped a new 2008 C6 Z51 six-speed coupe to Callaway Competition in Leingarten, Germany. In less than six weeks the Callaway team stripped the new car of all non-essential parts including carpet and standard seats. 
To clothe the 1965 mid engine Corvette chassis, the designers at Styling Staff proposed a much more radical shape than Zora Arkus Duntov, the main force behind a mid engine Corvette, had in mind. It would have provided rear vision solely through a periscope. The design had bold air intakes at the rear and a split windscreen that lifted up with the gullwing doors.
Genovation GXE C7 Corvette Stingray
Genovation Cars unveiled an electric Corvette with more power under its hood than a Dodge Challenger Hellcat. They call their car the Genovation GXE, and it is an EV (electric vehicle) variant of the seventh-generation Corvette. The company decided that they would replace the factory LT1 engine found in all base-model C7 Corvettes with a pair of electric motors that, when working in conjunction with each other, provide over 800 horsepower and 700 pound-feet of torque. 
The 2011 Chevrolet Corvette Z06X Track Car Concept was designed to suggest new components and a new idea for transforming a production Corvette into a serious and closed-course track car. This track car concept was developed and produced by Chevrolet in partnership with Pratt and Miller, the partners in Corvette Racing in the American LeMans Series. The competition-oriented modifications of the concept include a polycarbonate rear window, roll cage, safety harness, racing seat.