Car comparison

AUDI RS3 Sportback (8Y) 2.5 TFSIvsMercedes-Benz A-class (W177) AMG A 45

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

New comparison

AUDI RS3 Sportback (8Y)

2.5 TFSI

400 hp2480 ccGasolineAWDAutomaticTurbochargedHatchback2021-2024
VS

Mercedes-Benz A-class (W177)

AMG A 45

387 hp1991 ccGasolineAWDDual-clutchTurbochargedHatchback2019-2022

Comparison overview

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

Best choices

AUDI RS3 Sportback (8Y) 2.5 TFSI

  • Quickest 0-100 km/h
    3.8 s
  • Fastest top speed
    260 km/h
    162 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Most powerful
    400 hp
    298 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Best power-to-weight
    255 hp/t
    190 kW/t
    3.9 kg/hp
  • Lowest highway consumption
    7.1 L/100 km
    33.1 mpg US
    39.8 mpg UK
  • Best estimated range
    625 km
    388 mi
  • Best overall score
    75/100
  • Best performance score
    77/100

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

  • Lightest
    1,545 kg
    3,406 lb
  • Lowest combined fuel consumption
    8.4 L/100 km
    28.0 mpg US
    33.6 mpg UK
  • Lowest city consumption
    10.5 L/100 km
    22.4 mpg US
    26.9 mpg UK
  • Lowest CO2 emissions
    192 g/km
  • Largest trunk
    370 L
  • Best economy score
    84/100
  • Best practicality score
    74/100

Specification comparison

Specification comparison
ModelAUDIRS3 Sportback (8Y)2.5 TFSIMercedes-BenzA-class (W177)AMG A 45
Power
400hp298kW
387hp289kW
Torque
500Nm369lb-ft
480Nm354lb-ft
Curb weight
1,570kg3,461lb
1,545kg3,406lb
Gross weight
2,075kg4,575lb
2,080kg4,586lb
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
44.3s99% target: 257 km/h / 160 mph
Calculated
43.0s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
3.8s
4.1s
0-200 km/h
12.7s
Calculated
13.0s
Calculated
0-60 mph
3.6s
Calculated
3.9s
Calculated
Fuel consumption
8.8L/100 km26.7mpg US32.1mpg UK
8.4L/100 km28mpg US33.6mpg UK
Fuel consumption city
11.6L/100 km20.3mpg US24.4mpg UK
10.5L/100 km22.4mpg US26.9mpg UK
Fuel consumption highway
7.1L/100 km33.1mpg US39.8mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile
11.8s
Calculated
12.0s
Calculated
Power-to-weight
255hp/t190kW/t116hp/1000 lb
Calculated
250hp/t187kW/t114hp/1000 lb
Calculated
Torque-to-weight
318Nm/t213lb-ft/ton
Calculated
311Nm/t208lb-ft/ton
Calculated
Estimated range
625km388mi
Calculated
607km377mi
Calculated
Displacement
2,480cc151cu in
1,991cc121cu in
Length
4,389mm173in
4,445mm175in
Width
1,851mm73in
1,850mm73in
Height
1,436mm57in
1,407mm55in
Wheelbase
2,631mm104in
2,729mm107in
Front track
1,592mm63in
1,597mm63in
Rear track
1,524mm60in
1,558mm61in
Ground clearance-
94mm4in
Trunk volume
282L
370L
Max trunk volume
1,104L
1,210L
Doors
5
5
Seats
5
5
Fuel tank
55L
51L
CO2 emissions
201g/km
192g/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.

AUDI RS3 Sportback (8Y) 2.5 TFSIMercedes-Benz A-class (W177) AMG A 45PowerTorque
  • AUDI RS3 Sportback (8Y) 2.5 TFSI: Power / Torque
  • Mercedes-Benz A-class (W177) AMG A 45: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
AUDIRS3 Sportback (8Y)2.5 TFSI5,600-7,000 rpm2,250-5,600 rpm7,250 rpm
Mercedes-BenzA-class (W177)AMG A 456,500 rpm4,750-5,000 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAUDIRS3 Sportback (8Y)2.5 TFSIMercedes-BenzA-class (W177)AMG A 45
Acceleration checkpoints
0-60 mph
0-97 km/h
3.6 s
3.9 s
0-100 km/h
0-62 mph
3.8 s
4.1 s
0-200 km/h
0-124 mph
12.7 s
13.0 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.0 s
2.1 s
330 ft
101 m
5.1 s
5.3 s
1/8 mile
201 m
7.7 s
7.9 s
1000 ft
305 m
9.9 s
10.2 s
1/4 mile
402 m
11.8 s
12.0 s
Trap speed
1/4 mile
402 m
194 km/h
120 mph
193 km/h
120 mph

Power comparison

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

Chart data table
VehicleValue
AUDIRS3 Sportback (8Y)2.5 TFSI
400 hp
298 kW
Mercedes-BenzA-class (W177)AMG A 45
387 hp
289 kW

AUDI RS3 Sportback (8Y) 2.5 TFSI has 13 hp more than Mercedes-Benz A-class (W177) AMG A 45.

The biggest power difference is between Mercedes-Benz A-class (W177) AMG A 45 and AUDI RS3 Sportback (8Y) 2.5 TFSI: 13 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
AUDIRS3 Sportback (8Y)2.5 TFSI
500 Nm
369 lb-ft
Mercedes-BenzA-class (W177)AMG A 45
480 Nm
354 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
AUDIRS3 Sportback (8Y)2.5 TFSI
1,570 kg
3,461 lb
Mercedes-BenzA-class (W177)AMG A 45
1,545 kg
3,406 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
AUDIRS3 Sportback (8Y)2.5 TFSI
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Mercedes-BenzA-class (W177)AMG A 45
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
AUDIRS3 Sportback (8Y)2.5 TFSI3.8 s
Mercedes-BenzA-class (W177)AMG A 454.1 s

The biggest 0-100 km/h difference is between AUDI RS3 Sportback (8Y) 2.5 TFSI and Mercedes-Benz A-class (W177) AMG A 45: 0.3 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
AUDIRS3 Sportback (8Y)2.5 TFSI
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
Mercedes-BenzA-class (W177)AMG A 45
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
AUDIRS3 Sportback (8Y)2.5 TFSI
255 hp/t
190 kW/t
3.9 kg/hp
Mercedes-BenzA-class (W177)AMG A 45
250 hp/t
187 kW/t
4.0 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
AUDIRS3 Sportback (8Y)2.5 TFSI
625 km
388 mi
Mercedes-BenzA-class (W177)AMG A 45
607 km
377 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
AUDIRS3 Sportback (8Y)2.5 TFSI
400 hp
298 kW
3.8 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Mercedes-BenzA-class (W177)AMG A 45
387 hp
289 kW
4.1 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
AUDIRS3 Sportback (8Y)2.5 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
4,389 mm
172.8 in
Height
1,436 mm
56.5 in
Mercedes-BenzA-class (W177)AMG A 45
Power
387 hp
289 kW
0-100 km/h4.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
5 doors
5 seats
Trunk
370 L
13.1 cu ft
Length
4,445 mm
175.0 in
Height
1,407 mm
55.4 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
AUDIRS3 Sportback (8Y)2.5 TFSI
Power
400 hp
298 kW
0-100 km/h3.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
Mercedes-BenzA-class (W177)AMG A 45
Power
387 hp
289 kW
0-100 km/h4.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

AUDI RS3 Sportback (8Y) 2.5 TFSI 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
AUDIRS3 Sportback (8Y)2.5 TFSI
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
3.8 s
Mercedes-BenzA-class (W177)AMG A 45
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
4.1 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
AUDIRS3 Sportback (8Y)2.5 TFSI
255 hp/t
190 kW/t
3.9 kg/hp
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
Mercedes-BenzA-class (W177)AMG A 45
250 hp/t
187 kW/t
4.0 kg/hp
8.4 L/100 km
28.0 mpg US
33.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAUDIRS3 Sportback (8Y)2.5 TFSIMercedes-BenzA-class (W177)AMG A 45
Power
400 hp
298 kW
387 hp
289 kW
Torque
500 Nm
369 lb-ft
480 Nm
354 lb-ft
Acceleration
3.8 s
4.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,570 kg
3,461 lb
1,545 kg
3,406 lb
Fuel consumption
8.8 L/100 km
26.7 mpg US
32.1 mpg UK
8.4 L/100 km
28.0 mpg US
33.6 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
282 L
10.0 cu ft
Length
4,389 mm
172.8 in
Height
1,436 mm
56.5 in
Doors/seats
5 doors
5 seats
Trunk
370 L
13.1 cu ft
Length
4,445 mm
175.0 in
Height
1,407 mm
55.4 in
Range score
625 km
388 mi
607 km
377 mi
CO2 score
201 g/km
192 g/km
Trunk score
282 L
10.0 cu ft
370 L
13.1 cu ft
Power-to-weight score
255 hp/t
190 kW/t
3.9 kg/hp
250 hp/t
187 kW/t
4.0 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

Fuel cost and annual usage
VehicleAUDI RS3 Sportback (8Y) 2.5 TFSIMercedes-Benz A-class (W177) AMG A 45
Consumption8.8 L/100 km26.7 mpg US32.1 mpg UK8.4 L/100 km28 mpg US33.6 mpg UK
Cost / 100 km15.40 LC100 km14.70 LC100 km
Cost / 100 mi24.78 LC100 mi23.66 LC100 mi
Annual fuel used1,320 L349 US gal290 UK gal1,260 L333 US gal277 UK gal
Annual fuel cost2,310 LC/year2,205 LC/year

Head-to-head comparisons

AUDI RS3 Sportback (8Y) 2.5 TFSI

  • Has 13 hp more
  • Has 20 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Has 4 hp/t better power-to-weight
  • Has 18 km (11 mi) more estimated range

Pros

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

Cons

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

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

  • Is 25 kg lighter
  • Uses 0.4 L/100 km less fuel
  • Has 88 L more trunk volume
  • Emits 9 g/km less CO2

Pros

  • Lightest
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Lowest power

Choose cars to compare

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

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