Methods, apparatus, systems and articles of manufacture are disclosed for scalable vehicle platforms. An example vehicle chassis disclosed herein includes a right front chassis portion including a first longitudinal member, and a first crossmember attachment locator disposed on the first longitudinal member. The example vehicle chassis includes a left front chassis portion including a second longitudinal member and a second crossmember attachment locator disposed on the second longitudinal member, wherein the vehicle chassis has a first width when a first crossmember is coupled to the first and second crossmember attachment locators and wherein the vehicle chassis has a second width greater than the first width when a second crossmember is coupled to the first and second crossmember attachment locators, the second crossmember longer than the first crossmember.

A three-wheeler including two front wheels and a rear wheel, left and right seats, a steering mechanism steering the front wheels, an electric motor generating a torque by electrical energy, a power transmission mechanism transmitting the torque to the front wheels, and a body frame. A center of gravity of the three-wheeler is more frontward than a front end of the two seats and than a middle point of the wheelbase, and is more rearward than a front end of the electric energy storage device. The seats is, in a top view, partially in a triangle area that has a center of each of the front wheels and the rear wheel as vertices. The electric energy storage device, in the top view, overlaps a foot-resting area and is partially in the triangle area. The electric energy storage device is between the two front wheels.

A three-wheeler including two front wheels and a rear wheel, left and right seats, a steering mechanism steering the front wheels, an electric motor generating a torque by electrical energy, a power transmission mechanism transmitting the torque to the front wheels, and a body frame. A center of gravity of the three-wheeler is more frontward than a front end of the two seats and than a middle point of the wheelbase, and is more rearward than a front end of the electric energy storage device. The seats is, in a top view, partially in a triangle area that has a center of each of the front wheels and the rear wheel as vertices. The electric energy storage device, in the top view, overlaps a foot-resting area and is partially in the triangle area. The electric energy storage device is between the two front wheels.

An electric-vehicle frame includes a mid-section and an end section. The mid-section has first and second frame rails spaced from each other by a first distance along a cross-vehicle axis defining a battery compartment therebetween. The end-section has first and second frame rails spaced from each other by a second distance along the cross-vehicle axis smaller than the first distance. A first connector is fixed to the first frame rail of the mid-section and to the first frame rail of the end-section. A second connector is fixed to the second frame rail of the mid-section and to the second frame rail of the end-section.

An electric-vehicle frame includes a mid-section and an end section. The mid-section has first and second frame rails spaced from each other by a first distance along a cross-vehicle axis defining a battery compartment therebetween. The end-section has first and second frame rails spaced from each other by a second distance along the cross-vehicle axis smaller than the first distance. A first connector is fixed to the first frame rail of the mid-section and to the first frame rail of the end-section. A second connector is fixed to the second frame rail of the mid-section and to the second frame rail of the end-section.

A chassis frame for an electric vehicle may include: a first frame and a second frame spaced apart from each other in a longitudinal direction of the electric vehicle; a center frame disposed between the first frame and the second frame, and configured to have side members spaced apart from each other in a widthwise direction of the electric vehicle; a first fastener which extends from the first frame, and is fastened to a first side of the side member; and a second fastener which extends from the second frame, and is fastened to a second side of the side member, wherein the first fastener and the second fastener are configured to be in contact with entire peripheries of the side member.

A vehicle structure of a frame vehicle includes a central frame portion, a front-side frame portion, and a rear-side frame portion as a frame. A first section of the front-side frame portion from a connecting portion (a rear end portion) to a central frame portion through a portion supporting a front suspension, and a second section of the rear-side frame portion from a connecting portion (a front end portion) to the central frame portion through a portion supporting a rear suspension are formed so as to be symmetrical to each other in the front-rear direction with respect to the central frame portion. The front and rear suspensions are attached to the front-side and rear-side frame portions, respectively, so that the front and rear suspensions are symmetrical to each other in the front-rear direction with respect to the central frame portion.

An electric-vehicle frame includes a mid-section and an end section. The mid-section has first and second frame rails spaced from each other by a first distance along a cross-vehicle axis defining a battery compartment therebetween. The end-section has first and second frame rails spaced from each other by a second distance along the cross-vehicle axis smaller than the first distance. A first connector is fixed to the first frame rail of the mid-section and to the first frame rail of the end-section. A second connector is fixed to the second frame rail of the mid-section and to the second frame rail of the end-section.

An electric-vehicle frame includes a mid-section and an end section. The mid-section has first and second frame rails spaced from each other by a first distance along a cross-vehicle axis defining a battery compartment therebetween. The end-section has first and second frame rails spaced from each other by a second distance along the cross-vehicle axis smaller than the first distance. A first connector is fixed to the first frame rail of the mid-section and to the first frame rail of the end-section. A second connector is fixed to the second frame rail of the mid-section and to the second frame rail of the end-section.

A body structure for an automotive vehicle includes an enclosure for a power source, an upper shear structure assembly and a lower shear structure assembly. The enclosure includes a front cross-member, a rear cross-member, a left rocker and a right rocker. The upper and lower shear structure assemblies are disposed across the top and bottom of the enclosure, respectively, and are fastened to respective top and bottom surfaces of the cross-members and rockers. The upper and lower shear structure assemblies may include respective front and rear generally trapezoidal sections configured for attachment to respective front and rear box structures. Each of the shear structure assemblies is effective to dissipate in-plane a portion of an external load imposed upon the enclosure.