Gladstone:
sfo:

how many exhaust pipes in the center ????

You are quite right! If you have a V8, why not have eight exhaust pipes  Smiley

Has anyone seen exterior pics with the roof panel removed?

sfo: I actually quite agree. I think that two rectangular exhaust ports angled to match the tail lights (a quadrilateral perhaps) would have been a much more cohesive design.

RossN: many thanks for the pic, and that pic shows a better depth perception of the back of the car which looks much better in that picture than it does from a straight on view.