2021 BMW M4 Specifications Overview
The 2021 BMW M4 is certified across 7 configurations with 3L Gas-Electric Hybrid Engine, 3L 6-Cylinder Engine powertrain options. Available drivetrain layouts include Rear-Wheel Drive, All-Wheel Drive paired with Automatic (S8) or Manual 6-spd. EPA classified under the Subcompact Cars / Two Seaters / Small Sport Utility Vehicle 4WD size category.
Certified Powertrain & Transmission Configurations (7)
Official laboratory certification specifications for each factory engine, transmission, and drivetrain permutation
| Configuration / Model | Engine & Displacement | Cylinders | Induction / Tech | Transmission | Drivetrain | Fuel System |
|---|---|---|---|---|---|---|
| M440i Convertible Subcompact Cars | 3L Gas-Electric Hybrid Engine | 6 | Hybrid Electric Assist | Automatic (S8) | Rear-Wheel Drive | Premium |
| Z4 M40i Two Seaters | 3L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S8) | Rear-Wheel Drive | Premium |
| M440i xDrive Coupe Subcompact Cars | 3L Gas-Electric Hybrid Engine | 6 | Hybrid Electric Assist | Automatic (S8) | All-Wheel Drive | Premium |
| X3 M40i Small Sport Utility Vehicle 4WD | 3L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S8) | All-Wheel Drive | Premium |
| X4 M40i Small Sport Utility Vehicle 4WD | 3L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S8) | All-Wheel Drive | Premium |
| M4 Coupe Subcompact Cars | 3L 6-Cylinder Engine | 6 | Naturally Aspirated | Manual 6-spd | Rear-Wheel Drive | Premium |
| M4 Competition Coupe Subcompact Cars | 3L 6-Cylinder Engine | 6 | Naturally Aspirated | Automatic (S8) | Rear-Wheel Drive | Premium |
Regulatory Classification & Safety Architecture
Federal classification standards and standard active driver assistance system capabilities
EPA Regulatory Size Class
- Subcompact Cars
- Two Seaters
- Small Sport Utility Vehicle 4WD
NHTSA NCAP Body Formats
- 2021 BMW M4 2 DR AWD
- 2021 BMW M4 2 DR 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.