Hi all; Been to the boneyard today and found a nice clean B4. The front seats fit into a B3, I know, but what about the rear? The bench looks identical, but the back folds down and is split, unlike the B3 in which it is fixed. Would anyone know of a way to fit a B4 rear seat back into a B3? Thanks; Radek 88 90Q 91 V8Q 5-sp