Mercedes-Benz S-Class (W221) 420 V8 CDI Lang 7AT RWD (320 HP)
Mercedes-Benz S-Class (W221) · 2005 - present · Diesel
The Mercedes-Benz S-Class (W221) 420 V8 CDI Lang 7AT RWD (320 HP) produces 320 hp and 730 Nm. It accelerates from 0 to 100 km/h in 6.6 seconds and reaches 250 km/h. Stated combined consumption is 9.4 l/100 km, equal to 252 g CO2 per km.
- Power
- 320 hp
- Torque
- 730 Nm
- 0–100
- 6.6 s
- Top speed
- 250 km/h
Engine
| Power | 320 hp |
|---|---|
| Power (kW) | 235 kW |
| Torque | 730 Nm |
| Displacement | 3,996 cc |
| Cylinders | V8 |
| Fuel system | Common Rail |
| Fuel | Diesel |
| Fuel tank capacity | 90 l |
Performance
| Top speed | 250 km/h |
|---|---|
| Acceleration 0–100 km/h | 6.6 s |
Fuel economy and emissions
| Combined consumption | 9.4 l/100 km |
|---|---|
| City consumption | 13.0 l/100 km |
| Highway consumption | 7.2 l/100 km |
| CO2 emissions | 252 g/km |
Transmission
| Gearbox | 7-Speed Automatic |
|---|---|
| Drivetrain | Rear Wheel Drive |
Dimensions and weight
| Length | 5,207 mm |
|---|---|
| Width | 1,872 mm |
| Height | 1,483 mm |
| Wheelbase | 3,165 mm |
| Cargo volume | 561 l |
| Unladen weight | 2,140 kg |
| Gross weight limit | 2,660 kg |
| Tyre size | 235/55 R17 |
| Front brakes | Ventilated Discs |
| Rear brakes | Ventilated Discs |
How this trim compares to other cars
The Mercedes-Benz S-Class (W221) 420 V8 CDI Lang 7AT RWD (320 HP) compared with 7,186 trims of other cars from the 2002–2008 period.
| Measure | This trim | Average | Position |
|---|---|---|---|
| Power | 320 hp | 180 hp |
better than 92%
|
| Torque | 730 Nm | 284 Nm |
better than 99%
|
| Top speed | 250 km/h | 206 km/h |
better than 91%
|
| Acceleration 0–100 km/h | 6.6 s | 9.9 s |
better than 87%
|
| Combined consumption | 9.4 l/100 km | 8.1 l/100 km |
better than 25%
|
| CO2 emissions | 252 g/km | 191 g/km |
better than 13%
|
| Cargo volume | 561 l | 495 l |
better than 84%
|
| Unladen weight | 2,140 kg | 1,475 kg |
better than 5%
|
Percentages show the share of trims from the same period this model beats on that measure. Manufacturer figures.
Trims and engine versions — Mercedes-Benz S-Class (W221)
| Trim | Fuel | Power | Torque | 0–100 | Top speed | Fuel economy | CO2 | Select |
|---|---|---|---|---|---|---|---|---|
| 320 V6 CDI 7AT RWD (235 HP) | Diesel | 235 hp | 540 Nm | 7.5 s | 250 km/h | 8.3 l/100 km | 220 g/km | |
| 320 V6 CDI Lang 7AT RWD (235 HP) | Diesel | 235 hp | 540 Nm | 7.5 s | 250 km/h | 8.3 l/100 km | 223 g/km | |
| 350 V6 7AT RWD (272 HP) | Petrol | 272 hp | 350 Nm | 7.3 s | 250 km/h | 10.1 l/100 km | 242 g/km | |
| 350 V6 Lang 7AT RWD (272 HP) | Petrol | 272 hp | 350 Nm | 7.3 s | 250 km/h | 10.1 l/100 km | 242 g/km | |
| 420 V8 CDI 7AT RWD (320 HP) | Diesel | 320 hp | 730 Nm | 6.6 s | 250 km/h | 9.4 l/100 km | 247 g/km | |
| 450 V8 7AT RWD (340 HP) | Petrol | 340 hp | 460 Nm | 5.9 s | 250 km/h | 11.2 l/100 km | 267 g/km | |
| 450 V8 Lang 7AT RWD (340 HP) | Petrol | 340 hp | 460 Nm | 5.9 s | 250 km/h | 11.3 l/100 km | 267 g/km | |
| 500 Lang 7AT RWD (387 HP) | Petrol | 387 hp | 530 Nm | 5.4 s | 250 km/h | 11.8 l/100 km | 279 g/km | |
| 500 V8 7AT RWD (387 HP) | Petrol | 387 hp | 530 Nm | 5.4 s | 250 km/h | 11.7 l/100 km | 279 g/km | |
| 600 V8 5AT RWD (517 HP) | Petrol | 517 hp | 830 Nm | 4.6 s | 250 km/h | 14.3 l/100 km | 340 g/km |