Low center of gravity recreational vehicle with range extender

A recreational vehicle (RV) comprising:

• a chassis comprising longitudinal frame rails;
• an axle;
• an RV body enclosing a living area supported by the chassis, wherein the RV body comprises an exterior wall, an RV floor, and an RV roof, the RV roof comprising:
• a plurality of foam core units;
• a composite shell surrounding a majority of the plurality of foam core units;
• and
• a biaxial glass perimeter along a perimeter of the RV roof;
• an RV battery coupled to the chassis and positioned:
• between the longitudinal frame rails;
• forward of a center of mass of the RV;
• and
• below the RV floor of the RV body;
• a range extender comprising an engine, an alternator electrically coupled to the RV battery, a fuel system, a cooling system, and a battery recharge controller, wherein the range extender is coupled to the chassis and positioned:
• between the longitudinal frame rails;
• rearward of the center of mass of the RV;
• and
• below the RV floor of the RV body;
• and
• an electric motor electrically coupled to the RV battery, wherein the electric motor provides motive support to the axle of the RV and the electric motor is positioned rearward of the center of mass of the RV.