With styling inspiration from the classic Buick Y-Job concept car, the Blackhawk mixes actual vintage components to create its curvaceous shape. However, the power retractable top is thoroughly modern being made from carbon fiber and stows in the deck lid when the roof needs to go down. After so much work on the outside, the Buick has something equally surprising under the hood. It's a 1970 455-cubic-inch (7.5-liter) V8 GS Stage III V8 with a claimed 463 horsepower and 510 pound-feet of torque, and for easy cruising the mill is linked to a four-speed automatic.
Built in-house by Buick, the Blackhawk was once part of the General Motors Heritage Fleet, but the automaker sold it off in 2009 at the Barrett-Jackson auction in Scottsdale, AZ, along with many other members of the collection. The concept went for $522,500 after the buyer's premium, according to the auctioneers.
Now, it's crossing the block again with no reserve as part of RM Auctions sale of the Andrews Collection on May 2, 2015, in Fort Worth, TX. The 75-car auction also includes highlights like one of seven 1962 Ferrari 400 Superamerica SWB Cabriolet models bodied by Pininfarina.