There's a current ebay auction for a Whizzer boardtrack type bike. Looks freshly built from older parts. Sweet bike. At first I thought the tank was a custom fab job, but closer inspection of the pics shows it's not what it appears to be.....
Here's the auction link for reference and all the pics:
http://www.ebay.com/itm/1930s-to-40s-Schwinn-Whizzer-Custom-Boardtrack-Racer-/200972383126?pt=LH_DefaultDomain_0&hash=item2ecae33396#ht_1268wt_24582


Here's the auction link for reference and all the pics:
http://www.ebay.com/itm/1930s-to-40s-Schwinn-Whizzer-Custom-Boardtrack-Racer-/200972383126?pt=LH_DefaultDomain_0&hash=item2ecae33396#ht_1268wt_24582