The way the cyclinders are.
Well it's really the same for ALL cars, not just imports:
Your V6 is, well in the shape of a V three cylinders go one way, three go the other.
An I4 is (inline 4) the four cylinders are all in a row with each other.
If he's asking 800 that sounds like a decent deal. What's the mileage on it? You'll want to have the timing belt / water pump (major service) every 70k or so. I haven't had a head gasket go, so I can't give you a estimate on the price to fix, I'd say less than 1000. Someone can probably chime in on it who's had it done.
OR just call shops around you.
1996 Accord EX Coupe
CD Squad Member # 002
Official CD Squad Thread