Vehicles; apparatus in this class for locomotion by land, air or water, including apparatus that use a co-fuelled diesel engine; motors and engines for land vehicles, including diesel engines and co-fuelled diesel engines; parts and fittings in this class for motors and engines for land vehicles, including parts and fittings for diesel engines and co-fuelled diesel engines, co fuel tanks, co-fuel pumps, co-fuel control systems and liquid to gas converters; motors and engines other than for land vehicles, including diesel engines and co-fuelled diesel engines; parts and fittings in this class for motors and engines (excluding motors and engines for land vehicles), including parts and fittings for diesel engines and co-fuelled diesel engines, co-fuel tanks, co-fuel pumps, co-fuel control systems and liquid to gas converters; retail and wholesale services, namely, the retail and wholesale of vehicles, motors, engines; installation, maintenance and repair services; the conversion of diesel engines into a co-fuelled diesel engines; the installation, maintenance and repair of co-fuel systems and co-fuelled diesel engines