Mercedes-Benz S-class (W221)
Car comparison
Mercedes-Benz S-class (W221) S 500vsMercedes-Benz S-class (W220) AMG S 55
Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.
New comparisonMercedes-Benz S-class (W220)
AMG S 55
Comparison overview
Use the estimates as comparison hints and verify exact figures before making decisions.
Best choices
Mercedes-Benz S-class (W221) S 500
- Quickest 0-100 km/h5.4 s
- Fastest top speed265 km/h165 mph Unrestricted250 km/h155 mph Restricted
- Most powerful388 hp289 kW
- Highest torque530 Nm391 lb-ft
- Best power-to-weight201 hp/t150 kW/t5.0 kg/hp
- Lowest combined fuel consumption12.3 L/100 km19.1 mpg US23.0 mpg UK
- Best estimated range732 km455 mi
- Largest trunk560 L
- Best overall score74/100
- Best performance score72/100
- Best economy score74/100
- Best practicality score78/100
Mercedes-Benz S-class (W220) AMG S 55
- Lightest1,810 kg3,990 lb
Specification comparison
| Model | Mercedes-BenzS-class (W221)S 500 | Mercedes-BenzS-class (W220)AMG S 55 |
|---|---|---|
| Power | 388hp289kW | 360hp268kW |
| Torque | 530Nm391lb-ft | 530Nm391lb-ft |
| Curb weight | 1,935kg4,266lb | 1,810kg3,990lb |
| Gross weight | 2,620kg5,776lb | 2,380kg5,247lb |
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated |
| To 99% top speed | 53.2s99% target: 262 km/h / 163 mph Calculated | 59.1s99% target: 262 km/h / 163 mph Calculated |
| 0-100 km/h | 5.4s | 6.0s |
| 0-200 km/h | 16.1s Calculated | 17.9s Calculated |
| 0-60 mph | 5.2s Calculated | 5.7s Calculated |
| Fuel consumption | 12.3L/100 km19.1mpg US23.0mpg UK | 13.3L/100 km17.7mpg US21.2mpg UK |
| Fuel consumption city | 18.2L/100 km12.9mpg US15.5mpg UK | - |
| Fuel consumption highway | 9L/100 km26.1mpg US31.4mpg UK | - |
| Quarter mile | 13.3s Calculated | 13.9s Calculated |
| Power-to-weight | 201hp/t150kW/t91hp/1000 lb Calculated | 199hp/t148kW/t90hp/1000 lb Calculated |
| Torque-to-weight | 274Nm/t183lb-ft/ton Calculated | 293Nm/t196lb-ft/ton Calculated |
| Estimated range | 732km455mi Calculated | 662km411mi Calculated |
| Displacement | 5,461cc333cu in | 5,439cc332cu in |
| Length | 5,079mm200in | 5,038mm198in |
| Width | 1,872mm74in | 1,855mm73in |
| Height | 1,473mm58in | 1,444mm57in |
| Wheelbase | 3,035mm119in | 2,965mm117in |
| Front track | 1,604mm63in | 1,574mm62in |
| Rear track | 1,606mm63in | 1,570mm62in |
| Trunk volume | 560L | 500L |
| Doors | 4 | 4 |
| Seats | 5 | 5 |
| Fuel tank | 90L | 88L |
| CO2 emissions | 294g/km | - |
Performance charts
Use the estimates as comparison hints and verify exact figures before making decisions.
Dyno simulation
Estimated stock-style power and torque curves by engine speed.
- Mercedes-Benz S-class (W221) S 500: Power / Torque
- Mercedes-Benz S-class (W220) AMG S 55: Power / Torque
| Vehicle | Peak power RPM | Peak torque RPM | Max engine speed |
|---|---|---|---|
| Mercedes-BenzS-class (W221)S 500 | 6,000 rpm | 2,800-4,800 rpm | 6,250 rpm |
| Mercedes-BenzS-class (W220)AMG S 55 | 5,500 rpm | 3,150 rpm | 5,750 rpm |
Acceleration curve
Estimated speed over time for selected vehicles.
| Metric | Mercedes-BenzS-class (W221)S 500 | Mercedes-BenzS-class (W220)AMG S 55 |
|---|---|---|
| Acceleration checkpoints | ||
0-60 mph 0-97 km/h | 5.2 s | 5.7 s |
0-100 km/h 0-62 mph | 5.4 s | 6.0 s |
0-200 km/h 0-124 mph | 16.1 s | 17.9 s |
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited |
| Drag race simulation | ||
60 ft 18 m | 2.5 s | 2.6 s |
330 ft 101 m | 6.1 s | 6.4 s |
1/8 mile 201 m | 8.9 s | 9.3 s |
1000 ft 305 m | 11.3 s | 11.8 s |
1/4 mile 402 m | 13.3 s | 13.9 s |
Trap speed 1/4 mile 402 m | 182 km/h 113 mph | 176 km/h 109 mph |
Power comparison
Bar comparison chart for Power. Higher is better · hp / kW
| Vehicle | Value |
|---|---|
| Mercedes-BenzS-class (W221)S 500 | 388 hp 289 kW |
| Mercedes-BenzS-class (W220)AMG S 55 | 360 hp 268 kW |
Mercedes-Benz S-class (W221) S 500 has 28 hp more than Mercedes-Benz S-class (W220) AMG S 55.
The biggest power difference is between Mercedes-Benz S-class (W220) AMG S 55 and Mercedes-Benz S-class (W221) S 500: 28 hp (21 kW).
Torque comparison
Bar comparison chart for Torque. Higher is better · Nm / lb-ft
| Vehicle | Value |
|---|---|
| Mercedes-BenzS-class (W221)S 500 | 530 Nm 391 lb-ft |
| Mercedes-BenzS-class (W220)AMG S 55 | 530 Nm 391 lb-ft |
Curb weight comparison
Bar comparison chart for Curb weight. Lower is better · kg / lb
| Vehicle | Value |
|---|---|
| Mercedes-BenzS-class (W221)S 500 | 1,935 kg 4,266 lb |
| Mercedes-BenzS-class (W220)AMG S 55 | 1,810 kg 3,990 lb |
Top speed without limiter comparison
Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph
| Vehicle | Value |
|---|---|
| Mercedes-BenzS-class (W221)S 500 | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
| Mercedes-BenzS-class (W220)AMG S 55 | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
0-100 km/h comparison
Bar comparison chart for 0-100 km/h. Lower is better · seconds
| Vehicle | Value |
|---|---|
| Mercedes-BenzS-class (W221)S 500 | 5.4 s |
| Mercedes-BenzS-class (W220)AMG S 55 | 6.0 s |
The biggest 0-100 km/h difference is between Mercedes-Benz S-class (W221) S 500 and Mercedes-Benz S-class (W220) AMG S 55: 0.6 s.
Fuel consumption comparison
Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK
| Vehicle | Value |
|---|---|
| Mercedes-BenzS-class (W221)S 500 | 12.3 L/100 km 19.1 mpg US 23.0 mpg UK |
| Mercedes-BenzS-class (W220)AMG S 55 | 13.3 L/100 km 17.7 mpg US 21.2 mpg UK |
The biggest fuel consumption difference is between Mercedes-Benz S-class (W221) S 500 and Mercedes-Benz S-class (W220) AMG S 55: 1.0 L/100 km.
Power-to-weight comparison
Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t
| Vehicle | Value |
|---|---|
| Mercedes-BenzS-class (W221)S 500 | 201 hp/t 150 kW/t 5.0 kg/hp |
| Mercedes-BenzS-class (W220)AMG S 55 | 199 hp/t 148 kW/t 5.0 kg/hp |
Estimated range comparison
Bar comparison chart for Estimated range. Higher is better · km / mi
| Vehicle | Value |
|---|---|
| Mercedes-BenzS-class (W221)S 500 | 732 km 455 mi |
| Mercedes-BenzS-class (W220)AMG S 55 | 662 km 411 mi |
Performance spider chart
Radar chart comparing normalized performance and fuel-consumption scores.
| Vehicle | Power | Acceleration | Top speed |
|---|---|---|---|
| Mercedes-BenzS-class (W221)S 500 | 388 hp 289 kW | 5.4 s | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
| Mercedes-BenzS-class (W220)AMG S 55 | 360 hp 268 kW | 6.0 s | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph |
Most attractive quadrant
Scatter chart with performance score on the X axis and practicality score on the Y axis.
| Vehicle | Performance score | Practicality score | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mercedes-BenzS-class (W221)S 500 |
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| Mercedes-BenzS-class (W220)AMG S 55 |
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Performance vs fuel economy
Cars closer to the top-right corner combine stronger performance with better fuel economy scores.
| Vehicle | Performance score | Fuel economy score | ||||||
|---|---|---|---|---|---|---|---|---|
| Mercedes-BenzS-class (W221)S 500 |
| 12.3 L/100 km 19.1 mpg US 23.0 mpg UK | ||||||
| Mercedes-BenzS-class (W220)AMG S 55 |
| 13.3 L/100 km 17.7 mpg US 21.2 mpg UK | ||||||
Mercedes-Benz S-class (W221) S 500 is closest to the top-right balance target for performance and fuel economy.
Acceleration vs fuel consumption
Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.
| Vehicle | Fuel consumption, L/100 km | 0-100 km/h, s |
|---|---|---|
| Mercedes-BenzS-class (W221)S 500 | 12.3 L/100 km 19.1 mpg US 23.0 mpg UK | 5.4 s |
| Mercedes-BenzS-class (W220)AMG S 55 | 13.3 L/100 km 17.7 mpg US 21.2 mpg UK | 6.0 s |
Power-to-weight vs fuel consumption
The shaded area favors higher power-to-weight with lower combined fuel consumption.
| Vehicle | Power-to-weight, hp/t | Fuel consumption, L/100 km |
|---|---|---|
| Mercedes-BenzS-class (W221)S 500 | 201 hp/t 150 kW/t 5.0 kg/hp | 12.3 L/100 km 19.1 mpg US 23.0 mpg UK |
| Mercedes-BenzS-class (W220)AMG S 55 | 199 hp/t 148 kW/t 5.0 kg/hp | 13.3 L/100 km 17.7 mpg US 21.2 mpg UK |
Detailed score breakdown
| Vehicle | Mercedes-BenzS-class (W221)S 500 | Mercedes-BenzS-class (W220)AMG S 55 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | 388 hp 289 kW | 360 hp 268 kW | ||||||||||||||||
| Torque | 530 Nm 391 lb-ft | 530 Nm 391 lb-ft | ||||||||||||||||
| Acceleration | 5.4 s | 6.0 s | ||||||||||||||||
| Top speed | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph | Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph | ||||||||||||||||
| Lightness | 1,935 kg 4,266 lb | 1,810 kg 3,990 lb | ||||||||||||||||
| Fuel consumption | 12.3 L/100 km 19.1 mpg US 23.0 mpg UK | 13.3 L/100 km 17.7 mpg US 21.2 mpg UK | ||||||||||||||||
| Practicality |
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| Range score | 732 km 455 mi | 662 km 411 mi | ||||||||||||||||
| CO2 score | 294 g/km | - | ||||||||||||||||
| Trunk score | 560 L 19.8 cu ft | 500 L 17.7 cu ft | ||||||||||||||||
| Power-to-weight score | 201 hp/t 150 kW/t 5.0 kg/hp | 199 hp/t 148 kW/t 5.0 kg/hp | ||||||||||||||||
| Overall | Fixed score | Fixed score |
Fuel cost and annual usage
Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.
Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.
LC = Local Currency
| Vehicle | Mercedes-Benz S-class (W221) S 500 | Mercedes-Benz S-class (W220) AMG S 55 |
|---|---|---|
| Consumption | 12.3 L/100 km19.1 mpg US23 mpg UK | 13.3 L/100 km17.7 mpg US21.2 mpg UK |
| Cost / 100 km | 21.53 LC100 km | 23.28 LC100 km |
| Cost / 100 mi | 34.64 LC100 mi | 37.46 LC100 mi |
| Annual fuel used | 1,845 L487 US gal406 UK gal | 1,995 L527 US gal439 UK gal |
| Annual fuel cost | 3,229 LC/year | 3,491 LC/year |
Head-to-head comparisons
Mercedes-Benz S-class (W221) S 500
- Has 28 hp more
- Is 0.6 s quicker from 0-100 km/h
- Uses 1.0 L/100 km less fuel
- Has 2 hp/t better power-to-weight
- Has 70 km (44 mi) more estimated range
- Has 60 L more trunk volume
Pros
- Quickest 0-100 km/h in this comparison
- Highest top speed
- Most powerful
- Highest torque
- Lowest combined fuel consumption
- Best power-to-weight ratio
- Best estimated range
- Largest trunk
Cons
- Heaviest
Mercedes-Benz S-class (W220) AMG S 55
- Is 125 kg lighter
Pros
- Lightest
Cons
- Slowest 0-100 km/h
- Lowest power
- Highest combined fuel consumption
- Smallest trunk
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