Whether you believe in global warming or not, or that the world’s oil supply is running low, or that we all descend from aliens, the truth is simple: Fuel is getting very expensive, no matter what the cause. And powerboats burn a lot of it. It’s bad enough in the U.S., but even worse in Europe, where gasoline costs almost as much as single-malt whisky, and even diesel can put a dent in your Euro-stuffed wallet. So is it any surprise that a couple of innovative designers have developed the Greenline Hybrid 33, kind of a seagoing Prius that combines batteries, solar cells and a Volkswagen diesel to create an economical cruiser? No – what’s surprising is, these guys are from Slovenia, not usually considered a boatbuilding Mecca.