Aside from the Blackhawk, other cars from GM’s collection brought in big money. The first production 2006 Corvette Z06 garnered $100,000, and a ’69 Camaro once owned by Hall of Fame baseball player Reggie Jackson went for a top bid of $319,000.

One GM manager told Automotive News, “The Heritage Collection is sacred, a critical part of the history of GM.” Other vehicles made prominent sales as well. The first T-Bird ever to roll off the production line, a 1955 Ford Thunderbird, sold for $600,000. Also, a NASCAR Superbird inspired 1970 Plymouth, built with a 750 hp NASCAR engine, brought bids as high as $501,000.

Sales from GM’s heritage fleet will go back into the company’s coffers at a time when loose cash is desperately needed by the automaker. But not every one of GM’s sales are for profit.