2010 Sea-Doo RXP - X 255 This nimble two-seater accelerates from 0-50 miles per hour in 2.9 seconds, making it one of the quickest PWC on the water. With 255 horses and a slew of race-inspired features it has a great heritage in racing, winning nine out of 14 classes at the 2008 IJSBA World Finals. - 0-50 miles in 2.9 seconds