BMW 3 Series G20 3.0 M340i Sedan
285 kW387 PS382 hp2019
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- Power
- 285 kW 387 PS · 382 hp
- Fuel consumption
- 8.1 l/100 km
- Kerb weight
- 1,800 kg
- Boot volume
- 480 l
- Length
- 4,709 mm
- Displacement
- 2,998 cm³
Under the bonnet of the BMW 3 Series G20 3.0 M340i sedan sits a 3.0-litre six-cylinder petrol engine, good for 285 kW (387 PS).
No other petrol version of the 3 Series G20 matches its output among 3 petrol versions - that is 148% more than the entry 2.0 318i (115 kW). The 3 Series G20 3.0 M340i is also the best on power-to-weight (215 PS per tonne). In figures, it uses 8.1 l/100 km and tips the scales at 1,800 kg.
The 3 Series G20 3.0 M340i in numbers: strong points
- Most powerful petrol version of the 3 Series G20: 285 kW (387 PS)
- Best power-to-weight in the range: 215 PS per tonne
Dimensions drawing
To scale · width without mirrors
Zoom in to read the measurements - or see the table below.
grid 500 mm1 ft Side view: dashed lines mark the axles
Engine
| Fuel | Petrol |
|---|---|
| Displacement | 2,998 cm³ 3.0 l · 183 cu in |
| Cylinders | 6 |
| Power | 285 kW 387 PS · 382 hp |
Performance
| Fuel consumption | 8.1 l/100 km 34.9 mpg UK · 29.0 mpg US |
|---|---|
| CO₂ emissions | 183 g/km |
Dimensions and weight
| Length | 4,709 mm 185.4 in |
|---|---|
| Width | 1,827 mm 71.9 in |
| Height | 1,442 mm 56.8 in |
| Wheelbase | 2,851 mm 112.2 in |
| Kerb weight | 1,800 kg 3,968 lb |
| Boot volume | 480 l 17.0 cu ft |
Production
| Body type | Sedan |
|---|---|
| Years | 2019 |
| Generation | 3 Series G20 (2018–present) |
Compare size All 3 Series G20 versions All BMW spec sheets
Data sources
Data checked by an editor against the sources below.
Data: 14 of 25 fields · 2 sources · data changed 21 Oct 2026