Car comparison

BMW 4 Series Coupe (F32) 425dvsBMW 1 Series Coupe (E82) 125i

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

New comparison

BMW 4 Series Coupe (F32)

425d

218 hp1995 ccDieselRWDAutomaticTurbochargedCoupe2014-2016
VS

BMW 1 Series Coupe (E82)

125i

218 hp2996 ccGasolineRWDManualNaturally aspiratedCoupe2009-2011

Comparison overview

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

Best choices

BMW 4 Series Coupe (F32) 425d

  • Fastest top speed
    247 km/h
    153 mph
  • Most powerful
    218 hp
    163 kW
  • Highest torque
    450 Nm
    332 lb-ft
  • Lowest combined fuel consumption
    4.9 L/100 km
    48.0 mpg US
    57.6 mpg UK
  • Lowest city consumption
    5.9 L/100 km
    39.9 mpg US
    47.9 mpg UK
  • Lowest highway consumption
    4.3 L/100 km
    54.7 mpg US
    65.7 mpg UK
  • Lowest CO2 emissions
    128 g/km
  • Best estimated range
    1,163 km
    723 mi
  • Largest trunk
    445 L
  • Best overall score
    57/100
  • Best performance score
    59/100
  • Best economy score
    94/100
  • Best practicality score
    53/100

Specification comparison

Specification comparison
ModelBMW4 Series Coupe (F32)425dBMW1 Series Coupe (E82)125i
Power
218hp163kW
218hp163kW
Torque
450Nm332lb-ft
270Nm199lb-ft
Curb weight
1,505kg3,318lb
1,405kg3,097lb
Gross weight
2,025kg4,464lb
1,845kg4,068lb
Top speed
247 km/h
153 mph
245 km/h
152 mph
To 99% top speed
83.3s99% target: 245 km/h / 152 mph
Calculated
80.9s99% target: 243 km/h / 151 mph
Calculated
0-100 km/h
6.5s
6.4s
0-200 km/h
25.3s
Calculated
25.2s
Calculated
0-60 mph
6.2s
Calculated
6.1s
Calculated
Fuel consumption
4.9L/100 km48mpg US57.6mpg UK
7.9L/100 km29.8mpg US35.8mpg UK
Fuel consumption city
5.9L/100 km39.9mpg US47.9mpg UK
11.4L/100 km20.6mpg US24.8mpg UK
Fuel consumption highway
4.3L/100 km54.7mpg US65.7mpg UK
5.9L/100 km39.9mpg US47.9mpg UK
Quarter mile
14.6s
Calculated
14.5s
Calculated
Power-to-weight
145hp/t108kW/t66hp/1000 lb
Calculated
155hp/t116kW/t70hp/1000 lb
Calculated
Torque-to-weight
299Nm/t200lb-ft/ton
Calculated
192Nm/t129lb-ft/ton
Calculated
Estimated range
1,163km723mi
Calculated
671km417mi
Calculated
Displacement
1,995cc122cu in
2,996cc183cu in
Length
4,638mm183in
4,360mm172in
Width
1,825mm72in
1,748mm69in
Height
1,377mm54in
1,423mm56in
Wheelbase
2,810mm111in
2,660mm105in
Front track
1,545mm61in
1,474mm58in
Rear track
1,594mm63in
1,507mm59in
Ground clearance
130mm5in
147mm6in
Trunk volume
445L
370L
Doors
2
2
Seats
4
4
Fuel tank
57L
53L
CO2 emissions
128g/km
190g/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.

BMW 4 Series Coupe (F32) 425dBMW 1 Series Coupe (E82) 125iPowerTorque
  • BMW 4 Series Coupe (F32) 425d: Power / Torque
  • BMW 1 Series Coupe (E82) 125i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Coupe (F32)425d4,000 rpm1,500 rpm4,250 rpm
BMW1 Series Coupe (E82)125i6,100 rpm2,500-4,250 rpm6,350 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Coupe (F32)425dBMW1 Series Coupe (E82)125i
Acceleration checkpoints
0-60 mph
0-97 km/h
6.2 s
6.1 s
0-100 km/h
0-62 mph
6.5 s
6.4 s
0-200 km/h
0-124 mph
25.3 s
25.2 s
Top speed
247 km/h
153 mph
245 km/h
152 mph
Drag race simulation
60 ft
18 m
2.4 s
2.4 s
330 ft
101 m
6.3 s
6.3 s
1/8 mile
201 m
9.5 s
9.5 s
1000 ft
305 m
12.3 s
12.2 s
1/4 mile
402 m
14.6 s
14.5 s
Trap speed
1/4 mile
402 m
159 km/h
99 mph
160 km/h
99 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)425d
218 hp
163 kW
BMW1 Series Coupe (E82)125i
218 hp
163 kW

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)425d
450 Nm
332 lb-ft
BMW1 Series Coupe (E82)125i
270 Nm
199 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)425d
1,505 kg
3,318 lb
BMW1 Series Coupe (E82)125i
1,405 kg
3,097 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)425d
247 km/h
153 mph
BMW1 Series Coupe (E82)125i
245 km/h
152 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)425d6.5 s
BMW1 Series Coupe (E82)125i6.4 s

The biggest 0-100 km/h difference is between BMW 1 Series Coupe (E82) 125i and BMW 4 Series Coupe (F32) 425d: 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
BMW4 Series Coupe (F32)425d
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
BMW1 Series Coupe (E82)125i
7.9 L/100 km
29.8 mpg US
35.8 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Coupe (F32) 425d and BMW 1 Series Coupe (E82) 125i: 3.0 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
BMW4 Series Coupe (F32)425d
145 hp/t
108 kW/t
6.9 kg/hp
BMW1 Series Coupe (E82)125i
155 hp/t
116 kW/t
6.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)425d
1,163 km
723 mi
BMW1 Series Coupe (E82)125i
671 km
417 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Coupe (F32)425d
218 hp
163 kW
6.5 s
247 km/h
153 mph
BMW1 Series Coupe (E82)125i
218 hp
163 kW
6.4 s
245 km/h
152 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
BMW4 Series Coupe (F32)425d
Power
218 hp
163 kW
0-100 km/h6.5 s
Top speed
247 km/h
153 mph
Doors/seats
2 doors
4 seats
Trunk
445 L
15.7 cu ft
Length
4,638 mm
182.6 in
Height
1,377 mm
54.2 in
BMW1 Series Coupe (E82)125i
Power
218 hp
163 kW
0-100 km/h6.4 s
Top speed
245 km/h
152 mph
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,360 mm
171.7 in
Height
1,423 mm
56.0 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
BMW4 Series Coupe (F32)425d
Power
218 hp
163 kW
0-100 km/h6.5 s
Top speed
247 km/h
153 mph
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
BMW1 Series Coupe (E82)125i
Power
218 hp
163 kW
0-100 km/h6.4 s
Top speed
245 km/h
152 mph
7.9 L/100 km
29.8 mpg US
35.8 mpg UK

BMW 4 Series Coupe (F32) 425d 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
BMW4 Series Coupe (F32)425d
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
6.5 s
BMW1 Series Coupe (E82)125i
7.9 L/100 km
29.8 mpg US
35.8 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
BMW4 Series Coupe (F32)425d
145 hp/t
108 kW/t
6.9 kg/hp
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
BMW1 Series Coupe (E82)125i
155 hp/t
116 kW/t
6.4 kg/hp
7.9 L/100 km
29.8 mpg US
35.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Coupe (F32)425dBMW1 Series Coupe (E82)125i
Power
218 hp
163 kW
218 hp
163 kW
Torque
450 Nm
332 lb-ft
270 Nm
199 lb-ft
Acceleration
6.5 s
6.4 s
Top speed
247 km/h
153 mph
245 km/h
152 mph
Lightness
1,505 kg
3,318 lb
1,405 kg
3,097 lb
Fuel consumption
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
7.9 L/100 km
29.8 mpg US
35.8 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
445 L
15.7 cu ft
Length
4,638 mm
182.6 in
Height
1,377 mm
54.2 in
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,360 mm
171.7 in
Height
1,423 mm
56.0 in
Range score
1,163 km
723 mi
671 km
417 mi
CO2 score
128 g/km
190 g/km
Trunk score
445 L
15.7 cu ft
370 L
13.1 cu ft
Power-to-weight score
145 hp/t
108 kW/t
6.9 kg/hp
155 hp/t
116 kW/t
6.4 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
VehicleBMW 4 Series Coupe (F32) 425dBMW 1 Series Coupe (E82) 125i
Consumption4.9 L/100 km48 mpg US57.6 mpg UK7.9 L/100 km29.8 mpg US35.8 mpg UK
Cost / 100 km8.58 LC100 km13.83 LC100 km
Cost / 100 mi13.80 LC100 mi22.25 LC100 mi
Annual fuel used735 L194 US gal162 UK gal1,185 L313 US gal261 UK gal
Annual fuel cost1,286 LC/year2,074 LC/year

Head-to-head comparisons

BMW 4 Series Coupe (F32) 425d

  • Has 180 Nm more
  • Has 2 km/h (1 mph) higher top speed
  • Uses 3.0 L/100 km less fuel
  • Has 492 km (306 mi) more estimated range
  • Has 75 L more trunk volume
  • Emits 62 g/km less CO2

Pros

  • Highest top speed
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Heaviest

BMW 1 Series Coupe (E82) 125i

  • Is 100 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Has 10 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Lightest
  • Best power-to-weight ratio

Cons

  • Highest combined fuel consumption
  • Lowest top speed
  • Smallest trunk
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Coupe (F32) 425d
BMW 1 Series Coupe (E82) 125i
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