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Equipped with Intelligent Brake and Reverse system, the Sea-Doo GTX Limited iS 255 ($16,500) is the world’s first personal watercraft with an on-water braking technology. This personal watercraft features iControl, interactive gauges, a high performance Variable Trim system, intelligent Suspension and three-up riding and touring seats. The GTX Limited iS 255 is also powered by a 255 hp Rotax 4-TEC engine with an intelligent Throttle Control. [source]