BMW 6 Series Gran Turismo (G32) 640i (340 hp) Steptronic
Gasoline engine with 340 hp (250 kW) and 332 lb-ft (450 Nm), built 2017–2020, Gran Turismo body, rear-wheel drive. It is the most powerful gasoline version of the generation.
EnlargePower340 hp (250 kW)
Torque332 lb-ft (450 Nm)
0–62 mph5.4 s
Top speed155 mph (250 km/h)
FuelGasoline
Specifications
Engine
| Engine version | 640i (340 hp) Steptronic |
|---|---|
| Engine code | B58B30 |
| Displacement | 3.0 L (2,998 cm³) |
| Cylinders | 6 |
| Cylinder layout | Inline |
| Engine position | Front, Longitudinal |
| Valves per cylinder | 4 |
| Fuel system | Direct injection |
| Compression ratio | 11 |
| Bore | 82 mm |
| Stroke | 94.6 mm |
| Engine oil capacity | 6.9 qt (6.5 l) |
Performance
| Power | 340 hp (250 kW) @ 5500-6500 rpm |
|---|---|
| Torque | 332 lb-ft (450 Nm) @ 1380-5200 rpm |
| 0–62 mph (0–100 km/h) | 5.4 s |
| Top speed | 155 mph (250 km/h) |
Fuel economy and emissions
| Fuel | Gasoline |
|---|---|
| City | 25 mpg (9.6-9.8 l/100 km) |
| Highway | 34 mpg (7.0-7.4 l/100 km) |
| CO₂ emissions | 256 g/mi (159-169 g/km) |
| Emission standard | Euro 6 |
| Fuel tank | 18.0 gal (68 l) |
Body, dimensions and weight
| Body style | Gran Turismo |
|---|---|
| Doors | 5 |
| Length | 200.4 in (5,091 mm) |
| Width | 74.9 in (1,902 mm) |
| Height | 60.6 in (1,538 mm) |
| Curb weight | 3,902 lb (1,770 kg) |
| Gross vehicle weight | 5,401 lb (2,450 kg) |
| Cargo volume | 21.5 cu ft (610 l) |
| Drag coefficient | 0.26 |
Drivetrain and chassis
| Drive | Rear-wheel drive |
|---|---|
| Steering | Electric power steering |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link |
| Tires | 225/60 R17; 245/50 R18; 245/45 R19; 275/40 R19; 245/40 R20; 275/35 R20 |
| Wheels | 7.5J x 17; 8J x 18; 8.5J x 19; 9.5J x 19; 8.5J x 20; 10J x 20 |
| Driver assistance | ABS (Anti-lock braking system) |
What to check on a BMW 6 Series with this engine
- On a gasoline engine, check the oil consumption, the timing chain or belt and, on turbo engines, the turbocharger.
- Test the clutch or the automatic transmission from a cold start and in the low gears.
- Compare the odometer with the readings in the service records and in the VIN history report: a big gap means the mileage was rolled back.
Other BMW 6 Series Gran Turismo (G32) engines
| Engine | Fuel | Power | Combined |
|---|---|---|---|
| 630d (265 hp) Steptronic | Diesel | 265 hp (195 kW) | |
| 630d (265 hp) xDrive Steptronic | Diesel | 265 hp (195 kW) | |
| 630i (258 hp) Steptronic | Gasoline | 258 hp (190 kW) | |
| 640d (320 hp) xDrive Steptronic | Diesel | 320 hp (235 kW) | |
| 640i (340 hp) xDrive Steptronic | Gasoline | 340 hp (250 kW) | |
| 620d (190 hp) Steptronic | Diesel | 190 hp (140 kW) |