The engines of the 2009 Piaggio MP3 also differ in terms of power and torque. The MP3 250 engine produces 22.5 horsepower at 8,250 revolutions per minute (RPM) and 15.5 pound-feet (lb-ft) of torque at 6,750 RPM. The MP3 400 is the middling model, with an engine that generates 34 horsepower at 7,550 RPM and 27.3 lb-ft of torque at 5,000 RPM. The top-level MP3 500 has an engine that pumps out 40 horsepower at 7,250 RPM and 31.1 lb-ft of torque at 5,550 RPM. Maximum speed is 77 miles per hour (mph) for the MP3 250, 88 mph for the MP3 400 and 89 mph for the MP3 500.