Car comparison

Mercedes-Benz A-class (W177) · Facelift 2022 AMG A 45 SvsAUDI RS3 Sportback (8Y) · Facelift 2024 2.5 TFSI

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

New comparison

Mercedes-Benz A-class (W177) · Facelift 2022

AMG A 45 S

421 hp1991 ccGasolineAWDDual-clutchTurbochargedHatchback2022-present
VS

AUDI RS3 Sportback (8Y) · Facelift 2024

2.5 TFSI

400 hp2480 ccGasolineAWDAutomaticTurbochargedHatchback2024-present

Comparison overview

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

Best choices

Mercedes-Benz A-class (W177) Facelift 2022 AMG A 45 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
    262 hp/t
    196 kW/t
    3.8 kg/hp
  • Lowest combined fuel consumption
    9.2 L/100 km
    25.6 mpg US
    30.7 mpg UK
  • Largest trunk
    370 L
  • Best overall score
    78/100
  • Best performance score
    80/100
  • Best economy score
    82/100
  • Best practicality score
    74/100

Specification comparison

Specification comparison
ModelMercedes-BenzA-class (W177)Facelift 2022AMG A 45 SAUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
Power
421hp314kW
400hp298kW
Torque
500Nm369lb-ft
500Nm369lb-ft
Curb weight
1,605kg3,538lb
1,565kg3,450lb
Gross weight
2,130kg4,696lb
2,055kg4,530lb
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
47.5s99% target: 277 km/h / 172 mph
Calculated
44.2s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.9s
3.8s
0-200 km/h
11.9s
Calculated
12.7s
Calculated
0-60 mph
3.7s
Calculated
3.6s
Calculated
Fuel consumption
9.2L/100 km25.6mpg US30.7mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Quarter mile
11.8s
Calculated
11.8s
Calculated
Power-to-weight
262hp/t196kW/t119hp/1000 lb
Calculated
256hp/t191kW/t116hp/1000 lb
Calculated
Torque-to-weight
312Nm/t208lb-ft/ton
Calculated
319Nm/t214lb-ft/ton
Calculated
Estimated range
554km344mi
Calculated
579km360mi
Calculated
Displacement
1,991cc121cu in
2,480cc151cu in
Length
4,445mm175in
4,381mm172in
Width
1,850mm73in
1,851mm73in
Height
1,412mm56in
1,430mm56in
Wheelbase
2,729mm107in
2,631mm104in
Front track
1,597mm63in
1,592mm63in
Rear track
1,558mm61in
1,524mm60in
Trunk volume
370L
282L
Max trunk volume
1,210L
1,104L
Doors
5
5
Seats
5
5
Fuel tank
51L
55L

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) Facelift 2022 AMG A 45 SAUDI RS3 Sportback (8Y) Facelift 2024 2.5 TFSIPowerTorque
  • Mercedes-Benz A-class (W177) Facelift 2022 AMG A 45 S: Power / Torque
  • AUDI RS3 Sportback (8Y) Facelift 2024 2.5 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Mercedes-BenzA-class (W177)Facelift 2022AMG A 45 S6,750 rpm5,000-5,250 rpm7,000 rpm
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI5,600-7,000 rpm2,250-5,600 rpm7,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricMercedes-BenzA-class (W177)Facelift 2022AMG A 45 SAUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
3.7 s
3.6 s
0-100 km/h
0-62 mph
3.9 s
3.8 s
0-200 km/h
0-124 mph
11.9 s
12.7 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.0 s
2.0 s
330 ft
101 m
5.2 s
5.1 s
1/8 mile
201 m
7.8 s
7.7 s
1000 ft
305 m
9.9 s
9.9 s
1/4 mile
402 m
11.8 s
11.8 s
Trap speed
1/4 mile
402 m
199 km/h
124 mph
194 km/h
121 mph

Power comparison

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

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)Facelift 2022AMG A 45 S
421 hp
314 kW
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
400 hp
298 kW

Mercedes-Benz A-class (W177) Facelift 2022 AMG A 45 S has 21 hp more than AUDI RS3 Sportback (8Y) Facelift 2024 2.5 TFSI.

The biggest power difference is between AUDI RS3 Sportback (8Y) Facelift 2024 2.5 TFSI and Mercedes-Benz A-class (W177) Facelift 2022 AMG A 45 S: 21 hp (16 kW).

Torque comparison

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

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)Facelift 2022AMG A 45 S
500 Nm
369 lb-ft
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)Facelift 2022AMG A 45 S
1,605 kg
3,538 lb
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
1,565 kg
3,450 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)Facelift 2022AMG A 45 S
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
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)Facelift 2022AMG A 45 S3.9 s
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI3.8 s

Although Mercedes-Benz A-class (W177) Facelift 2022 AMG A 45 S has more power, AUDI RS3 Sportback (8Y) Facelift 2024 2.5 TFSI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI RS3 Sportback (8Y) Facelift 2024 2.5 TFSI and Mercedes-Benz A-class (W177) Facelift 2022 AMG A 45 S: 0.1 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)Facelift 2022AMG A 45 S
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

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)Facelift 2022AMG A 45 S
262 hp/t
196 kW/t
3.8 kg/hp
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
256 hp/t
191 kW/t
3.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Mercedes-BenzA-class (W177)Facelift 2022AMG A 45 S
554 km
344 mi
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
579 km
360 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Mercedes-BenzA-class (W177)Facelift 2022AMG A 45 S
421 hp
314 kW
3.9 s
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
400 hp
298 kW
3.8 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)Facelift 2022AMG 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
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
Power
400 hp
298 kW
0-100 km/h3.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
282 L
10.0 cu ft
Length
4,381 mm
172.5 in
Height
1,430 mm
56.3 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)Facelift 2022AMG 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
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
Power
400 hp
298 kW
0-100 km/h3.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Mercedes-Benz A-class (W177) Facelift 2022 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)Facelift 2022AMG A 45 S
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
3.9 s
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
3.8 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)Facelift 2022AMG A 45 S
262 hp/t
196 kW/t
3.8 kg/hp
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
AUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
256 hp/t
191 kW/t
3.9 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleMercedes-BenzA-class (W177)Facelift 2022AMG A 45 SAUDIRS3 Sportback (8Y)Facelift 20242.5 TFSI
Power
421 hp
314 kW
400 hp
298 kW
Torque
500 Nm
369 lb-ft
500 Nm
369 lb-ft
Acceleration
3.9 s
3.8 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
270 km/h168 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,605 kg
3,538 lb
1,565 kg
3,450 lb
Fuel consumption
9.2 L/100 km
25.6 mpg US
30.7 mpg UK
9.5 L/100 km
24.8 mpg US
29.7 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
282 L
10.0 cu ft
Length
4,381 mm
172.5 in
Height
1,430 mm
56.3 in
Range score
554 km
344 mi
579 km
360 mi
Trunk score
370 L
13.1 cu ft
282 L
10.0 cu ft
Power-to-weight score
262 hp/t
196 kW/t
3.8 kg/hp
256 hp/t
191 kW/t
3.9 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) Facelift 2022 AMG A 45 SAUDI RS3 Sportback (8Y) Facelift 2024 2.5 TFSI
Consumption9.2 L/100 km25.6 mpg US30.7 mpg UK9.5 L/100 km24.8 mpg US29.7 mpg UK
Cost / 100 km16.10 LC100 km16.63 LC100 km
Cost / 100 mi25.91 LC100 mi26.76 LC100 mi
Annual fuel used1,380 L365 US gal304 UK gal1,425 L376 US gal313 UK gal
Annual fuel cost2,415 LC/year2,494 LC/year

Head-to-head comparisons

Mercedes-Benz A-class (W177) Facelift 2022 AMG A 45 S

  • Has 21 hp more
  • Has 20 km/h (12 mph) higher top speed
  • Uses 0.3 L/100 km less fuel
  • Has 7 hp/t better power-to-weight
  • Has 88 L more trunk volume

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest

AUDI RS3 Sportback (8Y) Facelift 2024 2.5 TFSI

  • Is 40 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 25 km (15 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Lightest
  • Best estimated range

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Mercedes-Benz A-class (W177) AMG A 45 S
AUDI RS3 Sportback (8Y) 2.5 TFSI
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2 vehicles selected

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Mercedes-Benz A-class (W177) · Facelift 2022 AMG A 45 S vs AUDI RS3 Sportback (8Y) · Facelift 2024 2.5 TFSI - car comparison - FastVsFaster