Sea-Doo GTI Limited 155
The Limited sports a 155-hp engine that tops out at around 56 m.p.h. on smooth water.

In the past, the only way to stop a personal watercraft was to turn off the engine and drift to a stop – bad news when a sandbar's approaching. The GTI Limited is one of the first with a braking system: A brake gate drops with a full squeeze of the handle, stopping it in half the distance of similar craft. [$11,900;]