The first outboard was actually electric (left). The 12-cylinder block for Mercury’s 600-hp Verado shows how far outboard technology has come. World History Archive/Alamy stock photo Once upon a time, ...

Mercury Racing debuted the 3.4-liter V-6 150R and 200R outboards, providing boaters ­who seek high-performance outboards with lighter weight and array of performance-oriented choices in things such as ...