Jim, your reference the the Barker brothers got me curious, but all I got from googling was a reference in a regional SCCA newsletter talking about the vintage races at Road America, apparently (in 2004 at least) the Barker's 100/6 survives as a vintage racer http://www.scca-milwaukee.org/Newsletter/PDF/aug04_drift.pdf See page 7 for more. Greg Lemon