Just how different is the Spark? Way different. In a market that has come to be defined by fiberglass, the Spark is made from plastic, specifically a mix of polypropylene and long-strand glass fibers that make the hull durable, lightweight, and allow for a rainbow of trendy, matte-finish colors. Parts of the upper deck are seemingly missing; to further reduce weight (and boost style), Sea-Doo left out the area normally reserved for a bow storage compartment. Instead, twin “arms” angle down from the handlebars as part of a wishbone-like exoskeleton, leaving the space below completely open. Lift the seat and you won’t find the engine. Consumers are given small access ports to reach maintenance-related areas like the battery or oil dipstick, but for real engine maintenance a shop can simply unbolt the entire mid-deck and remove it in all of about five minutes. That’s the kind of access to the engine, driveline, and fuel systems that usually ends at the factory.