Grand Design RV has announced the Momentum MAV fifth wheel toy hauler lineup, bringing the MAV concept to the fifth wheel segment for the first time. The range includes three floorplans: the 270MAV, 340MAV and 390MAV. The models feature garages measuring 13 to 16 feet, and select versions use a single-slide configuration. The company says the design is intended to be lighter and compatible with a wider range of tow vehicles. The new models are expected at Grand Design dealers nationwide later this year.