Car comparison

BMW 4 Series Coupe (F32) 420dvsBMW 4 Series Convertible (F33) 420d

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

New comparison

BMW 4 Series Coupe (F32)

420d

184 hp1995 ccDieselAWDAutomaticTurbochargedCoupe2013-2015
VS

BMW 4 Series Convertible (F33)

420d

184 hp1995 ccDieselRWDAutomaticTurbochargedCabriolet / convertible2014-2015

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
  • Fastest top speed
    229 km/h
    142 mph
  • Most powerful
    184 hp
    137 kW
  • 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 highway consumption
    4.3 L/100 km
    54.7 mpg US
    65.7 mpg UK
  • Largest trunk
    445 L
  • Best overall score
    52/100
  • Best performance score
    52/100
  • Best economy score
    94/100
  • Best practicality score
    53/100

BMW 4 Series Convertible (F33) 420d

  • Lowest combined fuel consumption
    4.8 L/100 km
    49.0 mpg US
    58.9 mpg UK
  • Lowest city consumption
    5.7 L/100 km
    41.3 mpg US
    49.6 mpg UK
  • Lowest CO2 emissions
    127 g/km
  • Best estimated range
    1,188 km
    738 mi

Specification comparison

Specification comparison
ModelBMW4 Series Coupe (F32)420dBMW4 Series Convertible (F33)420d
Power
184hp137kW
184hp137kW
Torque
380Nm280lb-ft
380Nm280lb-ft
Curb weight
1,540kg3,395lb
1,690kg3,726lb
Gross weight
2,060kg4,542lb
2,160kg4,762lb
Top speed
229 km/h
142 mph
228 km/h
142 mph
To 99% top speed
88.6s99% target: 227 km/h / 141 mph
Calculated
101.0s99% target: 226 km/h / 140 mph
Calculated
0-100 km/h
7.3s
8.2s
0-200 km/h
33.9s
Calculated
39.0s
Calculated
0-60 mph
6.9s
Calculated
7.8s
Calculated
Fuel consumption
4.9L/100 km48mpg US57.6mpg UK
4.8L/100 km49mpg US58.9mpg UK
Fuel consumption city
5.8L/100 km40.6mpg US48.7mpg UK
5.7L/100 km41.3mpg US49.6mpg UK
Fuel consumption highway
4.3L/100 km54.7mpg US65.7mpg UK
4.3L/100 km54.7mpg US65.7mpg UK
Quarter mile
15.3s
Calculated
15.9s
Calculated
Power-to-weight
119hp/t89kW/t54hp/1000 lb
Calculated
109hp/t81kW/t49hp/1000 lb
Calculated
Torque-to-weight
247Nm/t165lb-ft/ton
Calculated
225Nm/t150lb-ft/ton
Calculated
Estimated range
1,163km723mi
Calculated
1,188km738mi
Calculated
Displacement
1,995cc122cu in
1,995cc122cu in
Length
4,638mm183in
4,638mm183in
Width
1,825mm72in
1,825mm72in
Height
1,392mm55in
1,384mm54in
Wheelbase
2,810mm111in
2,810mm111in
Front track
1,545mm61in
1,545mm61in
Rear track
1,594mm63in
1,594mm63in
Ground clearance
145mm6in
130mm5in
Trunk volume
445L
220L
Max trunk volume-
370L
Doors
2
2
Seats
4
4
Fuel tank
57L
57L
CO2 emissions
128g/km
127g/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) 420dBMW 4 Series Convertible (F33) 420dPowerTorque
  • BMW 4 Series Coupe (F32) 420d: Power / Torque
  • BMW 4 Series Convertible (F33) 420d: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Coupe (F32)420d4,000 rpm1,750-2,500 rpm4,250 rpm
BMW4 Series Convertible (F33)420d4,000 rpm1,750-2,750 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Coupe (F32)420dBMW4 Series Convertible (F33)420d
Acceleration checkpoints
0-60 mph
0-97 km/h
6.9 s
7.8 s
0-100 km/h
0-62 mph
7.3 s
8.2 s
0-200 km/h
0-124 mph
33.9 s
39.0 s
Top speed
229 km/h
142 mph
228 km/h
142 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
9.9 s
10.4 s
1000 ft
305 m
12.8 s
13.4 s
1/4 mile
402 m
15.3 s
15.9 s
Trap speed
1/4 mile
402 m
150 km/h
93 mph
144 km/h
90 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)420d
184 hp
137 kW
BMW4 Series Convertible (F33)420d
184 hp
137 kW

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)420d
380 Nm
280 lb-ft
BMW4 Series Convertible (F33)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 Coupe (F32)420d
1,540 kg
3,395 lb
BMW4 Series Convertible (F33)420d
1,690 kg
3,726 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)420d
229 km/h
142 mph
BMW4 Series Convertible (F33)420d
228 km/h
142 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)420d7.3 s
BMW4 Series Convertible (F33)420d8.2 s

The biggest 0-100 km/h difference is between BMW 4 Series Coupe (F32) 420d and BMW 4 Series Convertible (F33) 420d: 0.9 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)420d
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
BMW4 Series Convertible (F33)420d
4.8 L/100 km
49.0 mpg US
58.9 mpg UK

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)420d
119 hp/t
89 kW/t
8.4 kg/hp
BMW4 Series Convertible (F33)420d
109 hp/t
81 kW/t
9.2 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Coupe (F32)420d
1,163 km
723 mi
BMW4 Series Convertible (F33)420d
1,188 km
738 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Coupe (F32)420d
184 hp
137 kW
7.3 s
229 km/h
142 mph
BMW4 Series Convertible (F33)420d
184 hp
137 kW
8.2 s
228 km/h
142 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)420d
Power
184 hp
137 kW
0-100 km/h7.3 s
Top speed
229 km/h
142 mph
Doors/seats
2 doors
4 seats
Trunk
445 L
15.7 cu ft
Length
4,638 mm
182.6 in
Height
1,392 mm
54.8 in
BMW4 Series Convertible (F33)420d
Power
184 hp
137 kW
0-100 km/h8.2 s
Top speed
228 km/h
142 mph
Doors/seats
2 doors
4 seats
Trunk
220 L
7.8 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 Coupe (F32)420d
Power
184 hp
137 kW
0-100 km/h7.3 s
Top speed
229 km/h
142 mph
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
BMW4 Series Convertible (F33)420d
Power
184 hp
137 kW
0-100 km/h8.2 s
Top speed
228 km/h
142 mph
4.8 L/100 km
49.0 mpg US
58.9 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 Coupe (F32)420d
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
7.3 s
BMW4 Series Convertible (F33)420d
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
8.2 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)420d
119 hp/t
89 kW/t
8.4 kg/hp
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
BMW4 Series Convertible (F33)420d
109 hp/t
81 kW/t
9.2 kg/hp
4.8 L/100 km
49.0 mpg US
58.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Coupe (F32)420dBMW4 Series Convertible (F33)420d
Power
184 hp
137 kW
184 hp
137 kW
Torque
380 Nm
280 lb-ft
380 Nm
280 lb-ft
Acceleration
7.3 s
8.2 s
Top speed
229 km/h
142 mph
228 km/h
142 mph
Lightness
1,540 kg
3,395 lb
1,690 kg
3,726 lb
Fuel consumption
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
4.8 L/100 km
49.0 mpg US
58.9 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
445 L
15.7 cu ft
Length
4,638 mm
182.6 in
Height
1,392 mm
54.8 in
Doors/seats
2 doors
4 seats
Trunk
220 L
7.8 cu ft
Length
4,638 mm
182.6 in
Height
1,384 mm
54.5 in
Range score
1,163 km
723 mi
1,188 km
738 mi
CO2 score
128 g/km
127 g/km
Trunk score
445 L
15.7 cu ft
220 L
7.8 cu ft
Power-to-weight score
119 hp/t
89 kW/t
8.4 kg/hp
109 hp/t
81 kW/t
9.2 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) 420dBMW 4 Series Convertible (F33) 420d
Consumption4.9 L/100 km48 mpg US57.6 mpg UK4.8 L/100 km49 mpg US58.9 mpg UK
Cost / 100 km8.58 LC100 km8.40 LC100 km
Cost / 100 mi13.80 LC100 mi13.52 LC100 mi
Annual fuel used735 L194 US gal162 UK gal720 L190 US gal158 UK gal
Annual fuel cost1,286 LC/year1,260 LC/year

Head-to-head comparisons

BMW 4 Series Coupe (F32) 420d

  • Is 150 kg lighter
  • Is 0.9 s quicker from 0-100 km/h
  • Has 1 km/h (1 mph) higher top speed
  • Has 11 hp/t better power-to-weight
  • Has 225 L more trunk volume

Pros

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

Cons

  • Highest combined fuel consumption
  • Highest CO2 emissions

BMW 4 Series Convertible (F33) 420d

  • Uses 0.1 L/100 km less fuel
  • Has 24 km (15 mi) more estimated range
  • Emits 1 g/km less CO2

Pros

  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Coupe (F32) 420d
BMW 4 Series Convertible (F33) 420d
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