For competitors, check out Donzi's 35 ZR, which hit 93.2 mph in my test in the inaugural issue of SpeedBoat (January 2005) and retails for $300,196 with twin HP525 EFIs and Bravo One XRs with SportMaster lower units and ITS. Pay extra for staggered engines and the top speed should move up to 95 mph. Both the Donzi and Fountain are twin-stepped designs with narrow keelpads, whereas the Velocity SS 360 runs on a wider pad, nonstepped bottom. With an identical staggered power package to the Fountain, plus the Integrated Transom System, which includes hydraulic steering, SportMasters, and Hering props, it runs an estimated 99 mph and retails for $323,000. Both the Donzi and Velocity have longer running surfaces.