While auto engines are getting smaller and more efficient, marine outboards are packing on the cylinders. A year after introducing the "world's first V12 outboard," Mercury Marine followed up with ...

Once upon a time, a 200 hp outboard was huge. Today, there are boats with a half-dozen 600 hp V-12s strapped onto the transom. But how did we even get here? And where are we going? Ever since Gustave ...