That's funny about the crank...didn't know that. The 5's I've been around all seem to have kind of a unique exhaust note. They let out a really cool whine in the high RPMs. The one in the Audi I mentioned had amazing top end responsiveness (not sure about the Vigor, it was an automatic). Too bad they're kind of scarce...if I found a 5 cylinder head in a junkyard I'd buy it just to check it out and have it around.
Redcivic: I think the Vigor had under 200 hp. Definitly not 275 hp.