DETROIT, April 11, 2013 /PRNewswire-USNewswire/ -- The Barbara Ann Karmanos Cancer Institute's Annual Dinner, April 20, has already raised more than $2.2 million toward its $2.5 million goal, thanks in part to the auction of the first regular retail production 2014 Chevrolet Corvette Stingray Convertible, donated by Chevrolet. (Logo: http://photos.prnewswire.com/prnh/20071106/KARMANOSLOGO ) The vehicle went for $1 million at the Barrett-Jackson Collector Car Auction in Palm Beach, Fla., April 5. The winning bid came from Hendrick Automotive Group Chairman and Hendrick Motorsports owner Rick Hendrick, an avid Corvette collector. One hundred percent of the auction's proceeds, in addition to generous gifts from other sponsors, make up the more than $2.2 million raised-to-date. Donations benefit the Karmanos Cancer Institute in Detroit and will support cancer care and a new clinical core lab. "This is yet another example of what makes Rick Hendrick a great man, a great friend, and a great competitor," said Mark Reuss, president, General Motors North America. "Whether battling other race teams on the track or fighting cancer in the research lab, Rick is a guy I'd want on my side." Chevrolet donated the highly coveted sports car as part of General Motors' support for the Karmanos Cancer Institute and its upcoming 31st Annual Dinner, of which Chevrolet is Host Sponsor. Event Chairs are Mark and Kim Reuss. Karmanos Cancer Institute is one of only 41 National Cancer Institute-designated comprehensive cancer centers in the country. The 2014 Chevrolet Corvette Stingray Convertible offers all of the uncompromising performance of the coupe, including an estimated 450 horsepower and a 0-to-60 acceleration time of four seconds, according to GM. In addition, its all-new, fully electronic top can be lowered remotely and opened or closed at speeds of up to 30 mph. Barrett-Jackson was established in 1971 and specializes in providing products and services to classic and collector car owners, astute collectors and automotive enthusiasts around the world.