2021 BMW X3 Specifications Overview
The 2021 BMW X3 is certified across 6 configurations with 2L 4-Cylinder Engine, 2L Plug-in Hybrid Powertrain, 3L 6-Cylinder Engine powertrain options. Available drivetrain layouts include Rear-Wheel Drive, All-Wheel Drive paired with Automatic (S8). EPA classified under the Small Sport Utility Vehicle 2WD / Small Sport Utility Vehicle 4WD size category. Platform architecture belongs to the 3rd Generation (G01) vehicle family.
Certified Powertrain & Transmission Configurations (6)
Official laboratory certification specifications for each factory engine, transmission, and drivetrain permutation
| Configuration / Model | Engine & Displacement | Cylinders | Induction / Tech | Transmission | Drivetrain | Fuel System |
|---|---|---|---|---|---|---|
| X3 sDrive30i Small Sport Utility Vehicle 2WD | 2L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S8) | Rear-Wheel Drive | Premium |
| X3 xDrive30i Small Sport Utility Vehicle 4WD | 2L 4-Cylinder Engine | 4 | Naturally Aspirated | Automatic (S8) | All-Wheel Drive | Premium |
| X3 xDrive30e Small Sport Utility Vehicle 4WD | 2L Plug-in Hybrid Powertrain | 4 | Hybrid Electric Motor + Engine | Automatic (S8) | All-Wheel Drive | Premium and Electricity |
| X3 M40i Small Sport Utility Vehicle 4WD | 3L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S8) | All-Wheel Drive | Premium |
| X3 M Small Sport Utility Vehicle 4WD | 3L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S8) | All-Wheel Drive | Premium |
| X3 M Competition Small Sport Utility Vehicle 4WD | 3L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S8) | All-Wheel Drive | Premium |
Regulatory Classification & Safety Architecture
Federal classification standards and standard active driver assistance system capabilities
EPA Regulatory Size Class
- Small Sport Utility Vehicle 2WD
- Small Sport Utility Vehicle 4WD
NHTSA NCAP Body Formats
- 2021 BMW X3 SUV AWD
- 2021 BMW X3 SUV RWD
Active Safety Technology
Evaluated under federal safety compliance standards.
Powertrain, transmission, drivetrain, and regulatory classification specifications on this page are derived directly from the United States Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA) official laboratory certification registries.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.