Car comparison

BMW 4 Series Gran Coupe (G26) 420ivsBMW 4 Series Coupe (F32) 420d

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

New comparison

BMW 4 Series Gran Coupe (G26)

420i

184 hp1998 ccGasolineRWDAutomaticTurbochargedCoupe2021-2024
VS

BMW 4 Series Coupe (F32)

420d

184 hp1995 ccDieselRWDAutomaticTurbochargedCoupe2013-2015

Comparison overview

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

Best choices

BMW 4 Series Coupe (F32) 420d

  • Quickest 0-100 km/h
    7.3 s
  • Highest torque
    380 Nm
    280 lb-ft
  • Lightest
    1,540 kg
    3,395 lb
  • Best power-to-weight
    119 hp/t
    89 kW/t
    8.4 kg/hp
  • Lowest combined fuel consumption
    4.7 L/100 km
    50.0 mpg US
    60.1 mpg UK
  • Best estimated range
    1,213 km
    754 mi
  • Best performance score
    52/100
  • Best economy score
    94/100

Specification comparison

Specification comparison
ModelBMW4 Series Gran Coupe (G26)420iBMW4 Series Coupe (F32)420d
Power
184hp137kW
184hp137kW
Torque
300Nm221lb-ft
380Nm280lb-ft
Curb weight
1,620kg3,571lb
1,540kg3,395lb
Gross weight
2,175kg4,795lb
1,985kg4,376lb
Top speed
235 km/h
146 mph
232 km/h
144 mph
To 99% top speed
99.3s99% target: 233 km/h / 145 mph
Calculated
90.4s99% target: 230 km/h / 143 mph
Calculated
0-100 km/h
7.9s
7.3s
0-200 km/h
34.6s
Calculated
32.9s
Calculated
0-60 mph
7.5s
Calculated
6.9s
Calculated
Fuel consumption
7.3L/100 km32.2mpg US38.7mpg UK
4.7L/100 km50mpg US60.1mpg UK
Fuel consumption city-
5.6L/100 km42mpg US50.4mpg UK
Fuel consumption highway-
4.2L/100 km56mpg US67.3mpg UK
Quarter mile
15.7s
Calculated
15.3s
Calculated
Power-to-weight
114hp/t85kW/t52hp/1000 lb
Calculated
119hp/t89kW/t54hp/1000 lb
Calculated
Torque-to-weight
185Nm/t124lb-ft/ton
Calculated
247Nm/t165lb-ft/ton
Calculated
Estimated range
808km502mi
Calculated
1,213km754mi
Calculated
Displacement
1,998cc122cu in
1,995cc122cu in
Length
4,783mm188in
4,638mm183in
Width
1,852mm73in
1,825mm72in
Height
1,442mm57in
1,377mm54in
Wheelbase
2,856mm112in
2,810mm111in
Front track
1,595mm63in
1,545mm61in
Rear track
1,623mm64in
1,594mm63in
Ground clearance
140mm6in
-
Trunk volume
470L
-
Max trunk volume
1,290L
-
Doors
5
2
Seats
5
4
Fuel tank
59L
57L

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 Gran Coupe (G26) 420iBMW 4 Series Coupe (F32) 420dPowerTorque
  • BMW 4 Series Gran Coupe (G26) 420i: Power / Torque
  • BMW 4 Series Coupe (F32) 420d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Gran Coupe (G26)420i5,000-6,500 rpm1,350-4,000 rpm6,750 rpm
BMW4 Series Coupe (F32)420d4,000 rpm1,750-2,500 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Gran Coupe (G26)420iBMW4 Series Coupe (F32)420d
Acceleration checkpoints
0-60 mph
0-97 km/h
7.5 s
6.9 s
0-100 km/h
0-62 mph
7.9 s
7.3 s
0-200 km/h
0-124 mph
34.6 s
32.9 s
Top speed
235 km/h
146 mph
232 km/h
144 mph
Drag race simulation
60 ft
18 m
2.6 s
2.5 s
330 ft
101 m
6.8 s
6.6 s
1/8 mile
201 m
10.3 s
9.9 s
1000 ft
305 m
13.2 s
12.8 s
1/4 mile
402 m
15.7 s
15.3 s
Trap speed
1/4 mile
402 m
147 km/h
91 mph
150 km/h
93 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)420i
184 hp
137 kW
BMW4 Series Coupe (F32)420d
184 hp
137 kW

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)420i
300 Nm
221 lb-ft
BMW4 Series Coupe (F32)420d
380 Nm
280 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)420i
1,620 kg
3,571 lb
BMW4 Series Coupe (F32)420d
1,540 kg
3,395 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 Gran Coupe (G26)420i
235 km/h
146 mph
BMW4 Series Coupe (F32)420d
232 km/h
144 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)420i7.9 s
BMW4 Series Coupe (F32)420d7.3 s

The biggest 0-100 km/h difference is between BMW 4 Series Coupe (F32) 420d and BMW 4 Series Gran Coupe (G26) 420i: 0.6 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 Gran Coupe (G26)420i
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
BMW4 Series Coupe (F32)420d
4.7 L/100 km
50.0 mpg US
60.1 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Coupe (F32) 420d and BMW 4 Series Gran Coupe (G26) 420i: 2.6 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 Gran Coupe (G26)420i
114 hp/t
85 kW/t
8.8 kg/hp
BMW4 Series Coupe (F32)420d
119 hp/t
89 kW/t
8.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (G26)420i
808 km
502 mi
BMW4 Series Coupe (F32)420d
1,213 km
754 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Gran Coupe (G26)420i
184 hp
137 kW
7.9 s
235 km/h
146 mph
BMW4 Series Coupe (F32)420d
184 hp
137 kW
7.3 s
232 km/h
144 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 Gran Coupe (G26)420i
Power
184 hp
137 kW
0-100 km/h7.9 s
Top speed
235 km/h
146 mph
Doors/seats
5 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
4,783 mm
188.3 in
Height
1,442 mm
56.8 in
BMW4 Series Coupe (F32)420d
Power
184 hp
137 kW
0-100 km/h7.3 s
Top speed
232 km/h
144 mph
Doors/seats
2 doors
4 seats
Trunk-
Length
4,638 mm
182.6 in
Height
1,377 mm
54.2 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 Gran Coupe (G26)420i
Power
184 hp
137 kW
0-100 km/h7.9 s
Top speed
235 km/h
146 mph
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
BMW4 Series Coupe (F32)420d
Power
184 hp
137 kW
0-100 km/h7.3 s
Top speed
232 km/h
144 mph
4.7 L/100 km
50.0 mpg US
60.1 mpg UK

BMW 4 Series Coupe (F32) 420d 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 Gran Coupe (G26)420i
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
7.9 s
BMW4 Series Coupe (F32)420d
4.7 L/100 km
50.0 mpg US
60.1 mpg UK
7.3 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 Gran Coupe (G26)420i
114 hp/t
85 kW/t
8.8 kg/hp
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
BMW4 Series Coupe (F32)420d
119 hp/t
89 kW/t
8.4 kg/hp
4.7 L/100 km
50.0 mpg US
60.1 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Gran Coupe (G26)420iBMW4 Series Coupe (F32)420d
Power
184 hp
137 kW
184 hp
137 kW
Torque
300 Nm
221 lb-ft
380 Nm
280 lb-ft
Acceleration
7.9 s
7.3 s
Top speed
235 km/h
146 mph
232 km/h
144 mph
Lightness
1,620 kg
3,571 lb
1,540 kg
3,395 lb
Fuel consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
4.7 L/100 km
50.0 mpg US
60.1 mpg UK
Practicality
Doors/seats
5 doors
5 seats
Trunk
470 L
16.6 cu ft
Length
4,783 mm
188.3 in
Height
1,442 mm
56.8 in
Doors/seats
2 doors
4 seats
Trunk-
Length
4,638 mm
182.6 in
Height
1,377 mm
54.2 in
Range score
808 km
502 mi
1,213 km
754 mi
Trunk score
470 L
16.6 cu ft
-
Power-to-weight score
114 hp/t
85 kW/t
8.8 kg/hp
119 hp/t
89 kW/t
8.4 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 Gran Coupe (G26) 420iBMW 4 Series Coupe (F32) 420d
Consumption7.3 L/100 km32.2 mpg US38.7 mpg UK4.7 L/100 km50 mpg US60.1 mpg UK
Cost / 100 km12.78 LC100 km8.23 LC100 km
Cost / 100 mi20.56 LC100 mi13.24 LC100 mi
Annual fuel used1,095 L289 US gal241 UK gal705 L186 US gal155 UK gal
Annual fuel cost1,916 LC/year1,234 LC/year

Head-to-head comparisons

BMW 4 Series Coupe (F32) 420d

  • Has 80 Nm more
  • Is 80 kg lighter
  • Is 0.6 s quicker from 0-100 km/h
  • Uses 2.6 L/100 km less fuel
  • Has 6 hp/t better power-to-weight
  • Has 405 km (251 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Gran Coupe (G26) 420i
BMW 4 Series Coupe (F32) 420d
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BMW 4 Series Gran Coupe (G26) 420i vs BMW 4 Series Coupe (F32) 420d - car comparison - FastVsFaster