[kevins]

What is the smallest diesel engine that would be a suitable swap for use in a small vehicle? I'm looking for something that would actually fit in a 6 seat limo golf cart, and get maybe a top speed of 40-45mph. I'm not concerned with having to do modifications to make the engine fit, provided they are not too extreme (do not want to widen the body, but have no problem building a custom tube chassis to make it fit).

The cart in question will allow a Geo Metro 3cylinder engine and driveline to fit in the factory engine compartment without significant modification, if that gives an idea of the area I have to work with. I can take measurements of the entire engine bay if needed. I am just not that familiar with small diesel engines, so figured I'd come to you guys!

Initially I was going to find a used Metro and use the engine and driveline in the cart, and then possibly convert the Metro to electric, but I would prefer a small diesel for the cart project, if at all possible. This is a custom build, and will be registered for use on the street, as well as used off-road on my property in the mountains.

Any input would be greatly appreciated.

P.S., this project MAY end up converted to 4 wheel drive as well in the future.