I disagree. Not when you're talking an industry. Per your theory the Crossfire carries more genes from a 1920 LaFayette Four Door Coupe' than any of the pictured vehicles (LaFayette>Ajax>Nash>Rambler>American Motors>Chrysler>DiamlerChrysler>Chrysler Motors). As to only so many car shapes, Isogonis (Mini), Ferrarri, Lambo', Panoz, Nash (step-down), Overland (underslung), Cheetah, Janus, Isetta, VW Bus, etc., tell us that there are an infinate number of shapes, and we only have to look to the future and innovation for the later shapes to arrive. In the meantime, I suggest that the Chrysler mini-van is much more a progeny of the VW Bus than a Terraplane.