| GM BT1 platform | |
|---|---|
 GMC Hummer EV, the first vehicle based on the BT1 platform | |
| Overview | |
| Manufacturer | General Motors |
| Production | 2021–present |
| Body and chassis | |
| Layout | Dual- & triple-motor, all-wheel-drive |
| Related | GM BEV3 |
The GM BT1 platform, marketed under Ultium branding, is a dedicated electric vehicle architecture or platform developed by General Motors (GM). It underpins electric full-size pickup trucks and SUVs sold by GM, using battery and motor technology developed under its Ultium program; these are shared with third-generation GM electric vehicles on the BEV3 platform. BT1 is categorized as a skateboard platform.