I have heard of this too. Never saw it though.
its the y2k bike
Manufacturer Marine Turbine Technologies Inc.
Also called Y2K Superbike
Class Hyper sport
Engine Rolls-Royce 250-C20 turboshaft
Top speed 230 mph (370 km/h)
Power 320 hp (239 kW) @ 52,000 rpm
Torque 425 lb∑ft (576 N∑m) @ 2,000 rpm
Transmission 2-speed automatic
Suspension mono shock adjustable, oleopneumatic, Ohlins
Brakes 3 x 320 mm discs, 4-piston Brembo calipers
Rake, Trail 27 degrees
Wheelbase 68 in (1727.2 mm)
Weight 500 lb (230 kg)
Fuel capacity 34 l (7.5 imp gal; 9.0 US gal) (diesel, kerosene, or Jet A)