The beautifully curvaceous Buick Blackhawk concept was made in the early 2000s, and the one-off was largely constructed from vintage components from the brand. Once part of the General Motors Heritage Fleet, the Blackhawk was sold off in 2009. Now, the car is crossing the auction block again with no reserve as part of RM Auctions sale of the Andrews Collection on May 2, 2015.
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