There's a brown classic 770 4door near my friend's house, I'd like to get some $$ and make an offer to the guy. The quad headlight setup is side-by-side, the car itself is rather boxy but I find it attractive, it's all brown (makes for a good sleeper), and I see dual tailpipes peeking out from under it.

Any ideas on what year, engine, etc. this might have?