Inspired by the grueling race that gave it its name, the Panamericana had arches meant to accommodate quick changes of both wheels and suspension. No, not the Porsche Panamera — that slab-sided powerhouse is ugly just out of choice — but rather the sensational late-1980s concept car that was the Porsche Panamericana. This striking Porsche was designed and built as an 80th-birthday present for t... [3175 chars]