in 2013, his ford gt40 sold for $11 million. >> stuart piontek is racing to auction off his strange inheritance of vintage cars. his grandfather's lifelong obsession has become stuart's own. he's invested 13 years and $400,000 in the collection. ♪ i catch up with him at the hot rod association rally in oklahoma city. >> hi, my name is stuart. did you know my grandfather? >> while stuart works the crowd, i'm gonna see if i can get behind the wheel of one of these souped-up automobiles. >> how are you doing? hey, i'm jamie. >> hello, jamie. >> how are you? >> hello, i'm steven. >> tell me about this car. >> well it's a '37 chevrolet, so it's 77 years old. so, i've had it quite a bit of it's life. >> part of the family. >> yes, it is. >> oh, my. i've just gotten the keys. >> we can do that. >> let's go. >> all right. >> you have this thing insured? >> yes, i do. >> oh, good thing, because there's a tree right there. >> all right. hold on. whoo-hoo! now we're talking! [ tires screech ] this would work for me in new york. auctioneer yvette vanderbrink is here, too. so, yvette, you know, you see thes

in 2013, his ford gt40 sold for $11 million. >> stuart piontek is racing to auction off his strange inheritancehundreds of vintage cars. his grandfather's lifelong obsession has become stuart's own. he's invested 13 years and $400,000 in the collection. ♪ i catch up with him at the hot rod association rally in oklahoma city. >> hi, my name is stuart. did you know my grandfather? >> while stuart works the crowd, i'm gonna see if i can get behind the wheel of one of these souped-up automobiles. >> how are you doing? hey, i'm jamie. >> hello, jamie. >> how are you? >> hello, i'm steven. >> tell me about this car. >> well it's a '37 chevrolet, so it's 77 years old. so, i've had it quite a bit of it's life. >> part of the family. >> yes, it is. >> oh, my. i've just gotten the keys. >> we can do that. >> let's go. >> all right. >> you have this thing insured? >> yes, i do. >> oh, good thing, because there's a tree right there. >> all right. hold on. whoo-hoo! now we're talking! [ tires screech ] this would work for me in new york. auctioneer yvette vanderbrink is here, too. so, yvette, you know, you