[gallery columns="1" size="full" ids="85654"] An Audi Sport quattro S1 E2 rally car is a priceless thing, so the building of replicas has become a much repeated art for those who want their own versions of Audi's most bonkers Group B rally car. In theory then, you could buy one, build it and run it without the concerns of hurting something priceless. It's a grand idea. Case in point is this specimen, reportedly built in Poland out of a 1984 Audi 80 chassis. It's popped up for sale on Bring-...