[2] Honda announced it would partner with General Motors to develop "next-generation" batteries in 2018.

[3] The BEV3 architecture was first announced by GM in January 2019,[4] with Cadillac announced as the lead marque,[5] and BEV3 was officially detailed on March 4, 2020, during the GM EV Day briefing in Warren, Michigan, and supports Ultium batteries and Ultium Drive motors.

[11] GM claim that BEV3 will offer a larger footprint with lower height, greater energy density, and faster charging rate compared to BEV2.

The modular design will allow from six to twenty-four battery modules under the floor, depending on energy storage requirements.

[12] Premium vehicles that use the BEV3 platform have the option of a 4–6 in (100–150 mm) larger dash-to-axle ratio,[a] resulting in a longer hood that is intended to recall the classic proportions of personal luxury cars designed by Bill Mitchell for GM.