2017 Sea Doo SPARK 2UP 900 H.O. ACE IBR, SEATING FOR 2 OR 3: Whether you like to cruise in pairs or hit the water in threes, the Sea-Doo SPARK is available in 2up or 3up configuration.ROTAX 900 ACE / 900 HO ACE: The Rotax 900 ACE engine is the most fuel-efficient on the market, using just 1.94 US gal. (7.34 L) of fuel per hour. The higher-horsepower, faster-accelerating Rotax 900 HO ACE uses just 2.4 US gal. (9 L) per hour. Both are compact, lightweight and deliver immediate acceleration.POLYTEC MATERIAL: This innovative material reduces the weight of the Sea-Doo SPARK to deliver peak performance. Plus, the color-in molding makes it more scratch-resistant than fiberglass.INTELLIGENT THROTTLE CONTROL (iTC): Choose between a faster or a smoother acceleration thanks to the Sport mode available with the Rotax 900 HO ACE engine and the Touring mode available on all models.CLOSED-LOOP COOLING SYSTEM: This technology prevents corrosive saltwater and damaging debris from entering the engine, for increased reliability and peace of mind.iBR AND CONVENIENCE PACKAGE PLUS: Get more control with our exclusive Intelligent Brake and Reverse (iBR) system. Add the Front Storage Bin Kit to bring along your personal belongings and make reboarding easier with the Reboarding Step. Plus, enjoy added security with the RF D.E.S.S. key.