Car comparison

Mercedes-Benz A-class (W177) AMG A 45 SvsMercedes-Benz B-class (W247) B 250

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Mercedes-Benz A-class (W177)

AMG A 45 S

421 hp1991 ccGasolineAWDDual-clutchTurbochargedHatchback2019-2022
VS

Mercedes-Benz B-class (W247)

B 250

224 hp1991 ccGasolineFWDDual-clutchTurbochargedHatchback2019-2022

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Mercedes-Benz B-class (W247) B 250

  • Lightest
    1,420 kg
    3,131 lb
  • Lowest combined fuel consumption
    6.4 L/100 km
    36.8 mpg US
    44.1 mpg UK
  • Lowest city consumption
    8.3 L/100 km
    28.3 mpg US
    34.0 mpg UK
  • Lowest highway consumption
    5.4 L/100 km
    43.6 mpg US
    52.3 mpg UK
  • Lowest CO2 emissions
    147 g/km
  • Best estimated range
    672 km
    417 mi
  • Largest trunk
    445 L
  • Best economy score
    90/100
  • Best practicality score
    77/100

Mercedes-Benz A-class (W177) AMG A 45 S

  • Quickest 0-100 km/h
    3.9 s
  • Fastest top speed
    280 km/h
    174 mph Unrestricted
    270 km/h
    168 mph Restricted
  • Most powerful
    421 hp
    314 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Best power-to-weight
    272 hp/t
    203 kW/t
    3.7 kg/hp
  • Best overall score
    79/100
  • Best performance score
    81/100

Specification comparison

Specification comparison
ModelMercedes-BenzA-class (W177)AMG A 45 SMercedes-BenzB-class (W247)B 250
Power
421hp314kW
224hp167kW
Torque
500Nm369lb-ft
350Nm258lb-ft
Curb weight
1,550kg3,417lb
1,420kg3,131lb
Gross weight
2,080kg4,586lb
2,040kg4,497lb
Top speed
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
43.7s99% target: 277 km/h / 172 mph
Calculated
78.3s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.9s
6.4s
0-200 km/h
11.4s
Calculated
21.9s
Calculated
0-60 mph
3.7s
Calculated
6.1s
Calculated
Fuel consumption
8.4L/100 km28mpg US33.6mpg UK
6.4L/100 km36.8mpg US44.1mpg UK
Fuel consumption city
10.5L/100 km22.4mpg US26.9mpg UK
8.3L/100 km28.3mpg US34.0mpg UK
Fuel consumption highway
7.2L/100 km32.7mpg US39.2mpg UK
5.4L/100 km43.6mpg US52.3mpg UK
Quarter mile
11.7s
Calculated
14.4s
Calculated
Power-to-weight
272hp/t203kW/t123hp/1000 lb
Calculated
158hp/t118kW/t72hp/1000 lb
Calculated
Torque-to-weight
323Nm/t216lb-ft/ton
Calculated
246Nm/t165lb-ft/ton
Calculated
Estimated range
607km377mi
Calculated
672km417mi
Calculated
Displacement
1,991cc121cu in
1,991cc121cu in
Length
4,445mm175in
4,419mm174in
Width
1,850mm73in
1,796mm71in
Height
1,412mm56in
1,562mm61in
Wheelbase
2,729mm107in
2,729mm107in
Front track
1,597mm63in
1,567mm62in
Rear track
1,558mm61in
-
Ground clearance
97mm4in
-
Trunk volume
370L
445L
Max trunk volume
1,210L
1,540L
Doors
5
5
Seats
5
5
Fuel tank
51L
43L
CO2 emissions
192g/km
147g/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 A-class (W177) AMG A 45 SMercedes-Benz B-class (W247) B 250PowerTorque
  • Mercedes-Benz A-class (W177) AMG A 45 S: Power / Torque
  • Mercedes-Benz B-class (W247) B 250: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzA-class (W177)AMG A 45 S6,750 rpm5,000-5,250 rpm7,000 rpm
Mercedes-BenzB-class (W247)B 250-1,800 rpm2,050 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzA-class (W177)AMG A 45 SMercedes-BenzB-class (W247)B 250
Acceleration checkpoints
0-60 mph
0-97 km/h
3.7 s
6.1 s
0-100 km/h
0-62 mph
3.9 s
6.4 s
0-200 km/h
0-124 mph
11.4 s
21.9 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
Likely limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.1 s
2.5 s
330 ft
101 m
5.2 s
6.4 s
1/8 mile
201 m
7.7 s
9.5 s
1000 ft
305 m
9.9 s
12.2 s
1/4 mile
402 m
11.7 s
14.4 s
Trap speed
1/4 mile
402 m
202 km/h
126 mph
165 km/h
102 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)AMG A 45 S
421 hp
314 kW
Mercedes-BenzB-class (W247)B 250
224 hp
167 kW

Mercedes-Benz A-class (W177) AMG A 45 S has 197 hp more than Mercedes-Benz B-class (W247) B 250.

The biggest power difference is between Mercedes-Benz B-class (W247) B 250 and Mercedes-Benz A-class (W177) AMG A 45 S: 197 hp (147 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)AMG A 45 S
500 Nm
369 lb-ft
Mercedes-BenzB-class (W247)B 250
350 Nm
258 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)AMG A 45 S
1,550 kg
3,417 lb
Mercedes-BenzB-class (W247)B 250
1,420 kg
3,131 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)AMG A 45 S
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
Mercedes-BenzB-class (W247)B 250
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)AMG A 45 S3.9 s
Mercedes-BenzB-class (W247)B 2506.4 s

The biggest 0-100 km/h difference is between Mercedes-Benz A-class (W177) AMG A 45 S and Mercedes-Benz B-class (W247) B 250: 2.5 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)AMG A 45 S
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
Mercedes-BenzB-class (W247)B 250
6.4 L/100 km
36.8 mpg US
44.1 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz B-class (W247) B 250 and Mercedes-Benz A-class (W177) AMG A 45 S: 2.0 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)AMG A 45 S
272 hp/t
203 kW/t
3.7 kg/hp
Mercedes-BenzB-class (W247)B 250
158 hp/t
118 kW/t
6.3 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)AMG A 45 S
607 km
377 mi
Mercedes-BenzB-class (W247)B 250
672 km
417 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzA-class (W177)AMG A 45 S
421 hp
314 kW
3.9 s
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
Mercedes-BenzB-class (W247)B 250
224 hp
167 kW
6.4 s
Unrestricted
260 km/h162 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.

Chart data table
VehiclePerformance scorePracticality score
Mercedes-BenzA-class (W177)AMG A 45 S
Power
421 hp
314 kW
0-100 km/h3.9 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
Doors/seats
5 doors
5 seats
Trunk
370 L
13.1 cu ft
Length
4,445 mm
175.0 in
Height
1,412 mm
55.6 in
Mercedes-BenzB-class (W247)B 250
Power
224 hp
167 kW
0-100 km/h6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
445 L
15.7 cu ft
Length
4,419 mm
174.0 in
Height
1,562 mm
61.5 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
Mercedes-BenzA-class (W177)AMG A 45 S
Power
421 hp
314 kW
0-100 km/h3.9 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
Mercedes-BenzB-class (W247)B 250
Power
224 hp
167 kW
0-100 km/h6.4 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
6.4 L/100 km
36.8 mpg US
44.1 mpg UK

Mercedes-Benz A-class (W177) AMG A 45 S 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.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
Mercedes-BenzA-class (W177)AMG A 45 S
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
3.9 s
Mercedes-BenzB-class (W247)B 250
6.4 L/100 km
36.8 mpg US
44.1 mpg UK
6.4 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
Mercedes-BenzA-class (W177)AMG A 45 S
272 hp/t
203 kW/t
3.7 kg/hp
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
Mercedes-BenzB-class (W247)B 250
158 hp/t
118 kW/t
6.3 kg/hp
6.4 L/100 km
36.8 mpg US
44.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzA-class (W177)AMG A 45 SMercedes-BenzB-class (W247)B 250
Power
421 hp
314 kW
224 hp
167 kW
Torque
500 Nm
369 lb-ft
350 Nm
258 lb-ft
Acceleration
3.9 s
6.4 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,550 kg
3,417 lb
1,420 kg
3,131 lb
Fuel consumption
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
6.4 L/100 km
36.8 mpg US
44.1 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
370 L
13.1 cu ft
Length
4,445 mm
175.0 in
Height
1,412 mm
55.6 in
Doors/seats
5 doors
5 seats
Trunk
445 L
15.7 cu ft
Length
4,419 mm
174.0 in
Height
1,562 mm
61.5 in
Range score
607 km
377 mi
672 km
417 mi
CO2 score
192 g/km
147 g/km
Trunk score
370 L
13.1 cu ft
445 L
15.7 cu ft
Power-to-weight score
272 hp/t
203 kW/t
3.7 kg/hp
158 hp/t
118 kW/t
6.3 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

Fuel cost and annual usage
VehicleMercedes-Benz A-class (W177) AMG A 45 SMercedes-Benz B-class (W247) B 250
Consumption8.4 L/100 km28 mpg US33.6 mpg UK6.4 L/100 km36.8 mpg US44.1 mpg UK
Cost / 100 km14.70 LC100 km11.20 LC100 km
Cost / 100 mi23.66 LC100 mi18.02 LC100 mi
Annual fuel used1,260 L333 US gal277 UK gal960 L254 US gal211 UK gal
Annual fuel cost2,205 LC/year1,680 LC/year

Head-to-head comparisons

Mercedes-Benz A-class (W177) AMG A 45 S

  • Has 197 hp more
  • Has 150 Nm more
  • Is 2.5 s quicker from 0-100 km/h
  • Has 20 km/h (12 mph) higher top speed
  • Has 114 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Best power-to-weight ratio

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk
  • Highest CO2 emissions

Mercedes-Benz B-class (W247) B 250

  • Is 130 kg lighter
  • Uses 2.0 L/100 km less fuel
  • Has 65 km (40 mi) more estimated range
  • Has 75 L more trunk volume
  • Emits 45 g/km less CO2

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz A-class (W177) AMG A 45 S
Mercedes-Benz B-class (W247) B 250
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