Car comparison

BMW 4 Series Gran Coupe (F36) · Facelift 2017 420dvsBMW 4 Series Convertible (F33) 420i

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

New comparison

BMW 4 Series Gran Coupe (F36) · Facelift 2017

420d

190 hp1995 ccDieselAWDAutomaticTurbochargedCoupe2017-2021
VS

BMW 4 Series Convertible (F33)

420i

184 hp1998 ccGasolineRWDAutomaticTurbochargedCabriolet / convertible2016-2016

Comparison overview

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

Best choices

BMW 4 Series Gran Coupe (F36) Facelift 2017 420d

  • Quickest 0-100 km/h
    7.4 s
  • Fastest top speed
    230 km/h
    143 mph
  • Most powerful
    190 hp
    142 kW
  • Highest torque
    400 Nm
    295 lb-ft
  • Lightest
    1,615 kg
    3,560 lb
  • Best power-to-weight
    118 hp/t
    88 kW/t
    8.5 kg/hp
  • Lowest combined fuel consumption
    4.8 L/100 km
    49.0 mpg US
    58.9 mpg UK
  • Lowest city consumption
    5.6 L/100 km
    42.0 mpg US
    50.4 mpg UK
  • Lowest highway consumption
    4.3 L/100 km
    54.7 mpg US
    65.7 mpg UK
  • Lowest CO2 emissions
    126 g/km
  • Best estimated range
    1,188 km
    738 mi
  • Largest trunk
    480 L
  • Best overall score
    56/100
  • Best performance score
    52/100
  • Best economy score
    94/100
  • Best practicality score
    65/100

Specification comparison

Specification comparison
ModelBMW4 Series Gran Coupe (F36)Facelift 2017420dBMW4 Series Convertible (F33)420i
Power
190hp142kW
184hp137kW
Torque
400Nm295lb-ft
270Nm199lb-ft
Curb weight
1,615kg3,560lb
1,715kg3,781lb
Gross weight
2,175kg4,795lb
2,185kg4,817lb
Top speed
230 km/h
143 mph
230 km/h
143 mph
To 99% top speed
91.7s99% target: 228 km/h / 141 mph
Calculated
108.6s99% target: 228 km/h / 141 mph
Calculated
0-100 km/h
7.4s
8.4s
0-200 km/h
34.3s
Calculated
40.0s
Calculated
0-60 mph
7.0s
Calculated
7.9s
Calculated
Fuel consumption
4.8L/100 km49mpg US58.9mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Fuel consumption city
5.6L/100 km42mpg US50.4mpg UK
8.1L/100 km29mpg US34.9mpg UK
Fuel consumption highway
4.3L/100 km54.7mpg US65.7mpg UK
5.1L/100 km46.1mpg US55.4mpg UK
Quarter mile
15.3s
Calculated
16.1s
Calculated
Power-to-weight
118hp/t88kW/t53hp/1000 lb
Calculated
107hp/t80kW/t49hp/1000 lb
Calculated
Torque-to-weight
248Nm/t166lb-ft/ton
Calculated
157Nm/t105lb-ft/ton
Calculated
Estimated range
1,188km738mi
Calculated
968km601mi
Calculated
Displacement
1,995cc122cu in
1,998cc122cu in
Length
4,640mm183in
4,638mm183in
Width
1,825mm72in
1,825mm72in
Height
1,404mm55in
1,384mm54in
Wheelbase
2,810mm111in
2,810mm111in
Front track
1,543mm61in
1,545mm61in
Rear track
1,592mm63in
1,594mm63in
Ground clearance
145mm6in
130mm5in
Trunk volume
480L
370L
Max trunk volume
1,300L
-
Doors
4
2
Seats
5
4
Fuel tank
57L
60L
CO2 emissions
126g/km
144g/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 Gran Coupe (F36) Facelift 2017 420dBMW 4 Series Convertible (F33) 420iPowerTorque
  • BMW 4 Series Gran Coupe (F36) Facelift 2017 420d: Power / Torque
  • BMW 4 Series Convertible (F33) 420i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Gran Coupe (F36)Facelift 2017420d4,000 rpm1,750-2,500 rpm4,250 rpm
BMW4 Series Convertible (F33)420i5,000 rpm1,350-4,600 rpm5,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Gran Coupe (F36)Facelift 2017420dBMW4 Series Convertible (F33)420i
Acceleration checkpoints
0-60 mph
0-97 km/h
7.0 s
7.9 s
0-100 km/h
0-62 mph
7.4 s
8.4 s
0-200 km/h
0-124 mph
34.3 s
40.0 s
Top speed
230 km/h
143 mph
230 km/h
143 mph
Drag race simulation
60 ft
18 m
2.5 s
2.6 s
330 ft
101 m
6.6 s
6.9 s
1/8 mile
201 m
10.0 s
10.5 s
1000 ft
305 m
12.9 s
13.5 s
1/4 mile
402 m
15.3 s
16.1 s
Trap speed
1/4 mile
402 m
149 km/h
93 mph
143 km/h
89 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (F36)Facelift 2017420d
190 hp
142 kW
BMW4 Series Convertible (F33)420i
184 hp
137 kW

BMW 4 Series Gran Coupe (F36) Facelift 2017 420d has 6 hp more than BMW 4 Series Convertible (F33) 420i.

The biggest power difference is between BMW 4 Series Convertible (F33) 420i and BMW 4 Series Gran Coupe (F36) Facelift 2017 420d: 6 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (F36)Facelift 2017420d
400 Nm
295 lb-ft
BMW4 Series Convertible (F33)420i
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 Gran Coupe (F36)Facelift 2017420d
1,615 kg
3,560 lb
BMW4 Series Convertible (F33)420i
1,715 kg
3,781 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 (F36)Facelift 2017420d
230 km/h
143 mph
BMW4 Series Convertible (F33)420i
230 km/h
143 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 (F36)Facelift 2017420d7.4 s
BMW4 Series Convertible (F33)420i8.4 s

The biggest 0-100 km/h difference is between BMW 4 Series Gran Coupe (F36) Facelift 2017 420d and BMW 4 Series Convertible (F33) 420i: 1.0 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 (F36)Facelift 2017420d
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
BMW4 Series Convertible (F33)420i
6.2 L/100 km
37.9 mpg US
45.6 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Gran Coupe (F36) Facelift 2017 420d and BMW 4 Series Convertible (F33) 420i: 1.4 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 (F36)Facelift 2017420d
118 hp/t
88 kW/t
8.5 kg/hp
BMW4 Series Convertible (F33)420i
107 hp/t
80 kW/t
9.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Gran Coupe (F36)Facelift 2017420d
1,188 km
738 mi
BMW4 Series Convertible (F33)420i
968 km
601 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Gran Coupe (F36)Facelift 2017420d
190 hp
142 kW
7.4 s
230 km/h
143 mph
BMW4 Series Convertible (F33)420i
184 hp
137 kW
8.4 s
230 km/h
143 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 (F36)Facelift 2017420d
Power
190 hp
142 kW
0-100 km/h7.4 s
Top speed
230 km/h
143 mph
Doors/seats
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,640 mm
182.7 in
Height
1,404 mm
55.3 in
BMW4 Series Convertible (F33)420i
Power
184 hp
137 kW
0-100 km/h8.4 s
Top speed
230 km/h
143 mph
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,638 mm
182.6 in
Height
1,384 mm
54.5 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
BMW4 Series Gran Coupe (F36)Facelift 2017420d
Power
190 hp
142 kW
0-100 km/h7.4 s
Top speed
230 km/h
143 mph
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
BMW4 Series Convertible (F33)420i
Power
184 hp
137 kW
0-100 km/h8.4 s
Top speed
230 km/h
143 mph
6.2 L/100 km
37.9 mpg US
45.6 mpg UK

BMW 4 Series Gran Coupe (F36) Facelift 2017 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 (F36)Facelift 2017420d
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
7.4 s
BMW4 Series Convertible (F33)420i
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
8.4 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 Gran Coupe (F36)Facelift 2017420d
118 hp/t
88 kW/t
8.5 kg/hp
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
BMW4 Series Convertible (F33)420i
107 hp/t
80 kW/t
9.3 kg/hp
6.2 L/100 km
37.9 mpg US
45.6 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Gran Coupe (F36)Facelift 2017420dBMW4 Series Convertible (F33)420i
Power
190 hp
142 kW
184 hp
137 kW
Torque
400 Nm
295 lb-ft
270 Nm
199 lb-ft
Acceleration
7.4 s
8.4 s
Top speed
230 km/h
143 mph
230 km/h
143 mph
Lightness
1,615 kg
3,560 lb
1,715 kg
3,781 lb
Fuel consumption
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
480 L
17.0 cu ft
Length
4,640 mm
182.7 in
Height
1,404 mm
55.3 in
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,638 mm
182.6 in
Height
1,384 mm
54.5 in
Range score
1,188 km
738 mi
968 km
601 mi
CO2 score
126 g/km
144 g/km
Trunk score
480 L
17.0 cu ft
370 L
13.1 cu ft
Power-to-weight score
118 hp/t
88 kW/t
8.5 kg/hp
107 hp/t
80 kW/t
9.3 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
VehicleBMW 4 Series Gran Coupe (F36) Facelift 2017 420dBMW 4 Series Convertible (F33) 420i
Consumption4.8 L/100 km49 mpg US58.9 mpg UK6.2 L/100 km37.9 mpg US45.6 mpg UK
Cost / 100 km8.40 LC100 km10.85 LC100 km
Cost / 100 mi13.52 LC100 mi17.46 LC100 mi
Annual fuel used720 L190 US gal158 UK gal930 L246 US gal205 UK gal
Annual fuel cost1,260 LC/year1,628 LC/year

Head-to-head comparisons

BMW 4 Series Gran Coupe (F36) Facelift 2017 420d

  • Has 6 hp more
  • Has 130 Nm more
  • Is 100 kg lighter
  • Is 1.0 s quicker from 0-100 km/h
  • Uses 1.4 L/100 km less fuel
  • Has 10 hp/t better power-to-weight
  • Has 220 km (137 mi) more estimated range
  • Has 110 L more trunk volume
  • Emits 18 g/km less CO2

Pros

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

BMW 4 Series Convertible (F33) 420i

No measurable advantages in the available data.

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Heaviest
  • Smallest trunk
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Gran Coupe (F36) 420d
BMW 4 Series Convertible (F33) 420i
Compare selected cars
2 vehicles selected

Popular comparisons

420d
420d
VS
BMW4 Series Gran Coupe (F36)Facelift 2017420dvsBMW4 Series Coupe (F32)Facelift 2017420d
420i
420i
VS
BMW4 Series Convertible (F33)420ivsBMW4 Series Convertible (F33)Facelift 2017420i
420d
420d
VS
BMW4 Series Gran Coupe (F36)Facelift 2017420dvsBMW4 Series Coupe (G22)420d
420i
420i
VS
BMW4 Series Convertible (F33)420ivsBMW4 Series Convertible (G23)420i
420d
420d
VS
BMW4 Series Gran Coupe (F36)Facelift 2017420dvsBMW4 Series Gran Coupe (F36)420d
420d
420d
VS
BMW4 Series Gran Coupe (F36)Facelift 2017420dvsBMW4 Series Coupe (F32)420d
420d
420d
VS
BMW4 Series Gran Coupe (F36)Facelift 2017420dvsBMW4 Series Gran Coupe (G26)420d
420i
420i
VS
BMW4 Series Convertible (F33)420ivsBMW4 Series Gran Coupe (F36)Facelift 2017420i
420d
420i
VS
BMW4 Series Gran Coupe (F36)Facelift 2017420dvsBMW4 Series Convertible (F33)420i
420d
220d
VS
BMW4 Series Gran Coupe (F36)Facelift 2017420dvsBMW2 Series Coupe (G42)220d
420i
220i
VS
BMW4 Series Convertible (F33)420ivsBMW2 Series Convertible (F23)220i
420d
220d
VS
BMW4 Series Gran Coupe (F36)Facelift 2017420dvsBMW2 Series Gran Coupe (F44)220d
BMW 4 Series Gran Coupe (F36) · Facelift 2017 420d vs BMW 4 Series Convertible (F33) 420i - car comparison - FastVsFaster