BMW 3 Series G20
Produced from 2019–present, the BMW 3 Series G20 (G20) is catalogued here with 3 powertrains. 3 petrol, spanning 184 to 382 hp. The quickest version, the M340i xDrive 3.0, covers 0–100 km/h in 4.4 seconds. For fuel costs, the 320i 2.0 leads the range at 41 MPG (EPA combined). Externally it measures 4709 × 1827 × 1435 mm on a 2851 mm wheelbase. Full engine, transmission, performance, economy and weight data is compared trim-by-trim below, with EPA and NHTSA sources cited at the bottom of the page.
Generation Quick Facts: The BMW 3 Series G20 was manufactured from 2019 – present (2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 model years) as a sedan. Across 3 verified powertrains, power outputs range from 184 to 382 hp, with top fuel economy reaching 41.0 MPG combined (320i 2.0).
Power range
184–382 hp
Quickest 0–100
4.4 s
Best combined
41 MPG
Length
4.71 m
01Decision support
Which 3 Series G20 suits you?
Daily driver · least fuel
320i 2.0
41.0 MPG combined
It burns up to 32% less fuel per mile than the thirstiest 3 Series G20.
Performance · quickest
M340i xDrive 3.0
0–100 km/h in 4.4s · 382 hp
Genuinely quick, with hot-hatch pace from a family body.
Sweet spot · balance
330i 2.0
258 hp · 34.0 MPG
Sits mid-range for power without paying the fuel or price tax of the flagship trim. Usually the best value on the used market.
023 powertrains (3 petrol)
Full specifications
| Specification | 320i 2.0Petrol | 330i 2.0Petrol | M340i xDrive 3.0Petrol |
|---|---|---|---|
| Engine | |||
| Engine code | B48B20 | B48B20 | B58B30 |
| Fuel type | Petrol | Petrol | Petrol |
| Displacement | 2.0L (1,998 cc) | 2.0L (1,998 cc) | 3.0L (2,998 cc) |
| Aspiration | Turbocharged | Turbocharged | Turbocharged |
| Cylinders | I4 | I4 | I6 |
| Power & Performance | |||
| Power | 184 hp / 137 kW | 258 hp / 192 kW | 382 hp / 285 kW |
| Torque | 290 Nm / 214 lb-ft | 400 Nm / 295 lb-ft | 500 Nm / 369 lb-ft |
| 0–100 km/h | 7.1 s | 5.8 s | 4.4 s |
| Top speed | 235 km/h (146 mph) | 250 km/h (155 mph) | 250 km/h (155 mph) |
| Transmission & Drivetrain | |||
| Transmission | Automatic | Automatic | Automatic |
| Gears | 8 | 8 | 8 |
| Drivetrain | RWD | RWD | AWD |
| Fuel Economy & Emissions | |||
| City | 35 MPG (6.7 L/100km) | 30 MPG (7.8 L/100km) | 25 MPG (9.4 L/100km) |
| Highway | 47 MPG (5.0 L/100km) | 40 MPG (5.9 L/100km) | 32 MPG (7.4 L/100km) |
| Combined | 41 MPG (5.7 L/100km) | 34 MPG (6.9 L/100km) | 28 MPG (8.4 L/100km) |
| Electric range | — | — | — |
| Battery | — | — | — |
| CO₂ emissions | 139 g/km | 151 g/km | 186 g/km |
| Weight & Body | |||
| Curb weight | 1,500 kg (3,307 lbs) | 1,555 kg (3,428 lbs) | 1,745 kg (3,847 lbs) |
| Seats | 5 | 5 | 5 |
| Doors | 4 | 4 | 4 |
| Model years | 2019–present | 2019–present | 2019–present |
03Then vs now
G20 vs. previous generation
| Metric | Change vs. F30 |
|---|---|
| Peak power | +76 hp |
| Quickest 0–100 km/h | -1.1 s |
| Best combined MPG | +2 MPG |
| Average curb weight | +132 kg |
Why this matters
Versus the F30, the G20 is clearly more efficient, noticeably more powerful, quicker off the line, heavier, mostly safety and equipment mass. Used-car shoppers should weigh these shifts against the F30's typically lower asking prices.
View the F30 spec sheet0Exterior
Dimensions
Length
4,709 mm
185.4 in
Width
1,827 mm
71.9 in
Height
1,435 mm
56.5 in
Wheelbase
2,851 mm
112.2 in
Curb weight spans 1,500–1,745 kg depending on powertrain. Battery and AWD hardware add the most mass.
05Long-tail answers
3 Series G20: questions answered
What engines and trims are available on the BMW 3 Series G20?
The BMW 3 Series G20 lineup offers 3 petrol: 320i 2.0 (184 hp), 330i 2.0 (258 hp), M340i xDrive 3.0 (382 hp).
How quick is the BMW 3 Series G20 from 0 to 100 km/h?
The fastest trim, the M340i xDrive 3.0, accelerates from 0 to 100 km/h in 4.4s, reaching a top speed of 250 km/h (155 mph) with the 330i 2.0.
What is the most fuel-efficient BMW 3 Series G20 trim?
The 320i 2.0 delivers the highest fuel economy at 41.0 MPG (EPA combined). Across the 3 powertrains, fuel economy spans 28–41 combined MPG.
How does the G20 compare to the previous BMW 3 Series?
Against the F30 predecessor it replaces, the G20 is clearly more efficient, noticeably more powerful, quicker off the line, heavier, mostly safety and equipment mass. Side-by-side technical specs are detailed in the comparison table below.
What model years are included in the BMW 3 Series G20?
The BMW 3 Series G20 was produced from 2019 – present, spanning the following model years: 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026.
What are the exterior dimensions of the BMW 3 Series G20?
4709 mm long, 1827 mm wide, 1435 mm tall on a 2851 mm wheelbase (185.4 in overall length).
Sources for this page
- EPA fuel-economy records: BMW 3 SeriesCertification data, 2019–2026
- NHTSA vehicle file: recalls, complaints and investigations2019 BMW 3 Series, official safety record
- NHTSA vPIC vehicle databasePowers our VIN decoder, the federal manufacturer registry
- BMW official: data sheets and archiveManufacturer-published specifications
Figures on this page are compiled from the sources above and cross-checked against manufacturer data sheets. US-market EPA cycle where noted; European WLTP values are measured differently and are not directly comparable.
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