This action-packed documentary celebrates the achievements of the man who brought you the racing Porsche 911, the 917, the Bugatti Veyron, the Audi Quattro, the VW Phaeton, the Mercedes OM617 turbodiesel, TDI, DSG, XL1 and... Dieselgate. As promised for literal years on The Carmudgeon Show, this is the Piëchisode!