Become a premium member for just $35/year and get ad-free access!
As the story goes, when the Corvette ZR-1 came out in 1990, Dick Guldstrand saw an opportunity to create his vision of the perfect Grand Sport ride, instead of his name just getting slapped onto another Chevrolet product. He asked GM for fifteen ZR-1’s and some money. He got one car and permission to do whatever he wanted to do with it. And that’s exactly what he did. Called the "GS90", Dick's car would prove to be the most elaborate and expensive specialty Corvette ever built.
When Dick Guldstrand introduced the GS80 series in 1986, the car was targeted specifically at Pro-Solo and autocross enthusiasts. He knew all about the needs of these groups, as he was a longtime provider of performance upgrades for the C3 and a direct supporter of a small team of racers from the Western Council of Corvette Clubs. Up to this point, Dick had basically been a tuner. With the intro of the GS80 he was venturing into the realm of small-volume manufacturing.
Callaway Competition has constructed some of the most successful GT3 race cars in history. Competing against the world’s premier marques, Callaway is currently recognized as the most successful race team of the ADAC GT Masters series. To celebrate Callaway Competition’s 25th anniversary, we’re building 25 unique, specially-equipped “Callaway Champion” road cars. The Z06-based Champions are built by our expert craftsmen.
The 25th Anniversary Edition is a hardened up version of Callaway's Corvette SC757, which in turn is based on a C7-generation Corvette Z06. It features a supercharged V8 that pumps out 757-horsepower and 777 pound-feet of torque. The supercharger is a GenThree Callaway unit with the company's TripleCooled intercooler system. A high-flow intake system feeds that beast. Callaway's Level Two HD Cooling System also helps it avoid the overheating issues that plagued C7 Z06s.
The Duntov Turbo was built as a partnership between American Custom Industries (ACI), a company known for building replacement Corvette body panels, and Zora Arkus-Duntov. It was developed as a highly-stylized convertible sports car based on the production model Corvette. Each of the special Duntov Turbo's also came with a turbocharged V8.