Car comparison

BMW 4 Series Convertible (F33) 420i · Stage 3vsBMW 4 Series Convertible (F33) 420i · Stage 2vsBMW 4 Series Convertible (F33) 420i · Stage 1vsBMW 4 Series Convertible (F33) 420i

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

New comparison

BMW 4 Series Convertible (F33)

420i (Stage 3)

276 hp1997 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2014-2016
VS

BMW 4 Series Convertible (F33)

420i (Stage 2)

239 hp1997 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2014-2016
VS

BMW 4 Series Convertible (F33)

420i (Stage 1)

217 hp1997 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2014-2016
VS

BMW 4 Series Convertible (F33)

420i

184 hp1997 ccGasolineRWDAutomaticTwin-turboCabriolet / convertible2014-2016

Comparison overview

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

Best choices

BMW 4 Series Convertible (F33) 420i (Stage 3) 276 hp

  • Quickest 0-100 km/h
    6.4 s
  • Fastest top speed
    268 km/h
    167 mph
  • Most powerful
    276 hp
    206 kW
  • Highest torque
    419 Nm
    309 lb-ft
  • Lightest
    1,675 kg
    3,693 lb
  • Best power-to-weight
    165 hp/t
    123 kW/t
    6.1 kg/hp
  • Lowest combined fuel consumption
    6.6 L/100 km
    35.6 mpg US
    42.8 mpg UK
  • Lowest city consumption
    8.9 L/100 km
    26.4 mpg US
    31.7 mpg UK
  • Lowest highway consumption
    5.3 L/100 km
    44.4 mpg US
    53.3 mpg UK
  • Lowest CO2 emissions
    154 g/km
  • Best estimated range
    909 km
    565 mi
  • Largest trunk
    370 L
  • Best overall score
    57/100
  • Best performance score
    62/100
  • Best economy score
    89/100
  • Best practicality score
    47/100

Specification comparison

Specification comparison
ModelBMW4 Series Convertible (F33)420i (Stage 3)276 hpBMW4 Series Convertible (F33)420i (Stage 2)239 hpBMW4 Series Convertible (F33)420i (Stage 1)217 hpBMW4 Series Convertible (F33)420i184 hp
Power
276hp206kW+92 hp
239hp178kW+55 hp
217hp162kW+33 hp
184hp137kW
Torque
419Nm309lb-ft+149 Nm
365Nm269lb-ft+95 Nm
329Nm243lb-ft+59 Nm
270Nm199lb-ft
Curb weight
1,675kg3,693lb
1,675kg3,693lb
1,675kg3,693lb
1,675kg3,693lb
Gross weight
2,145kg4,729lb
2,145kg4,729lb
2,145kg4,729lb
2,145kg4,729lb
Top speed
268 km/h
167 mph
+38 km/h
255 km/h
158 mph
+25 km/h
246 km/h
153 mph
+16 km/h
230 km/h
143 mph
To 99% top speed
95.7s99% target: 265 km/h / 165 mph-10.8 s
Calculated
100.8s99% target: 252 km/h / 157 mph-5.6 s
Calculated
103.6s99% target: 244 km/h / 151 mph-2.9 s
Calculated
106.5s99% target: 228 km/h / 141 mph
Calculated
0-100 km/h
6.4s-1.9 s
7.1s-1.3 s
7.5s-0.8 s
8.3s
0-200 km/h
22.9s-16.4 s
Calculated
27.1s-12.2 s
Calculated
30.6s-8.7 s
Calculated
39.3s
Calculated
0-60 mph
6.1s-1.7 s
Calculated
6.7s-1.2 s
Calculated
7.1s-0.8 s
Calculated
7.8s
Calculated
Fuel consumption
6.6L/100 km35.6mpg US42.8mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
Fuel consumption city
8.9L/100 km26.4mpg US31.7mpg UK
8.9L/100 km26.4mpg US31.7mpg UK
8.9L/100 km26.4mpg US31.7mpg UK
8.9L/100 km26.4mpg US31.7mpg UK
Fuel consumption highway
5.3L/100 km44.4mpg US53.3mpg UK
5.3L/100 km44.4mpg US53.3mpg UK
5.3L/100 km44.4mpg US53.3mpg UK
5.3L/100 km44.4mpg US53.3mpg UK
Quarter mile
14.5s-1.5 s
Calculated
15.0s-1.0 s
Calculated
15.4s-0.6 s
Calculated
16.0s
Calculated
Power-to-weight
165hp/t123kW/t75hp/1000 lb
Calculated
143hp/t106kW/t65hp/1000 lb
Calculated
130hp/t97kW/t59hp/1000 lb
Calculated
110hp/t82kW/t50hp/1000 lb
Calculated
Torque-to-weight
250Nm/t167lb-ft/ton
Calculated
218Nm/t146lb-ft/ton
Calculated
197Nm/t132lb-ft/ton
Calculated
161Nm/t108lb-ft/ton
Calculated
Estimated range
909km565mi
Calculated
909km565mi
Calculated
909km565mi
Calculated
909km565mi
Calculated
Displacement
1,997cc122cu in
1,997cc122cu in
1,997cc122cu in
1,997cc122cu in
Length
4,638mm183in
4,638mm183in
4,638mm183in
4,638mm183in
Width
1,825mm72in
1,825mm72in
1,825mm72in
1,825mm72in
Height
1,384mm54in
1,384mm54in
1,384mm54in
1,384mm54in
Wheelbase
2,810mm111in
2,810mm111in
2,810mm111in
2,810mm111in
Front track
1,545mm61in
1,545mm61in
1,545mm61in
1,545mm61in
Rear track
1,594mm63in
1,594mm63in
1,594mm63in
1,594mm63in
Ground clearance
130mm5in
130mm5in
130mm5in
130mm5in
Trunk volume
370L
370L
370L
370L
Doors
2
2
2
2
Seats
4
4
4
4
Fuel tank
60L
60L
60L
60L
CO2 emissions
154g/km
154g/km
154g/km
154g/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 Convertible (F33) 420i (Stage 3) 276 hpBMW 4 Series Convertible (F33) 420i (Stage 2) 239 hpBMW 4 Series Convertible (F33) 420i (Stage 1) 217 hpBMW 4 Series Convertible (F33) 420i 184 hpPowerTorque
  • BMW 4 Series Convertible (F33) 420i (Stage 3) 276 hp: Power / Torque
  • BMW 4 Series Convertible (F33) 420i (Stage 2) 239 hp: Power / Torque
  • BMW 4 Series Convertible (F33) 420i (Stage 1) 217 hp: Power / Torque
  • BMW 4 Series Convertible (F33) 420i 184 hp: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Convertible (F33)420i (Stage 3)276 hp5,000-6,250 rpm1,250-4,500 rpm6,500 rpm
BMW4 Series Convertible (F33)420i (Stage 2)239 hp5,000-6,250 rpm1,250-4,500 rpm6,500 rpm
BMW4 Series Convertible (F33)420i (Stage 1)217 hp5,000-6,250 rpm1,250-4,500 rpm6,500 rpm
BMW4 Series Convertible (F33)420i184 hp5,000-6,250 rpm1,250-4,500 rpm6,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Convertible (F33)420i (Stage 3)276 hpBMW4 Series Convertible (F33)420i (Stage 2)239 hpBMW4 Series Convertible (F33)420i (Stage 1)217 hpBMW4 Series Convertible (F33)420i184 hp
Acceleration checkpoints
0-60 mph
0-97 km/h
6.1 s
6.7 s
7.1 s
7.8 s
0-100 km/h
0-62 mph
6.4 s
7.1 s
7.5 s
8.3 s
0-200 km/h
0-124 mph
22.9 s
27.1 s
30.6 s
39.3 s
Top speed
268 km/h
167 mph
255 km/h
158 mph
246 km/h
153 mph
230 km/h
143 mph
Drag race simulation
60 ft
18 m
2.4 s
2.5 s
2.5 s
2.6 s
330 ft
101 m
6.3 s
6.5 s
6.7 s
6.9 s
1/8 mile
201 m
9.5 s
9.8 s
10.0 s
10.4 s
1000 ft
305 m
12.2 s
12.6 s
12.9 s
13.5 s
1/4 mile
402 m
14.5 s
15.0 s
15.4 s
16.0 s
Trap speed
1/4 mile
402 m
162 km/h
101 mph
155 km/h
96 mph
151 km/h
94 mph
143 km/h
89 mph

Power comparison

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

BMW 4 Series Convertible (F33) 420i (Stage 3) 276 hp has 92 hp more than BMW 4 Series Convertible (F33) 420i 184 hp.

The biggest power difference is between BMW 4 Series Convertible (F33) 420i 184 hp and BMW 4 Series Convertible (F33) 420i (Stage 3) 276 hp: 92 hp (69 kW).

Torque comparison

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

Curb weight comparison

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

Top speed without limiter comparison

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

0-100 km/h comparison

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

The biggest 0-100 km/h difference is between BMW 4 Series Convertible (F33) 420i (Stage 3) 276 hp and BMW 4 Series Convertible (F33) 420i 184 hp: 1.9 s.

The closest cars by acceleration are BMW 4 Series Convertible (F33) 420i (Stage 2) 239 hp and BMW 4 Series Convertible (F33) 420i (Stage 1) 217 hp, separated by only 0.4 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 Convertible (F33)420i (Stage 3)276 hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i184 hp
6.6 L/100 km
35.6 mpg US
42.8 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 Convertible (F33)420i (Stage 3)276 hp
165 hp/t
123 kW/t
6.1 kg/hp
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
143 hp/t
106 kW/t
7.0 kg/hp
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
130 hp/t
97 kW/t
7.7 kg/hp
BMW4 Series Convertible (F33)420i184 hp
110 hp/t
82 kW/t
9.1 kg/hp

Estimated range comparison

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

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Convertible (F33)420i (Stage 3)276 hp
276 hp
206 kW
6.4 s
268 km/h
167 mph
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
239 hp
178 kW
7.1 s
255 km/h
158 mph
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
217 hp
162 kW
7.5 s
246 km/h
153 mph
BMW4 Series Convertible (F33)420i184 hp
184 hp
137 kW
8.3 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 Convertible (F33)420i (Stage 3)276 hp
Power
276 hp
206 kW
0-100 km/h6.4 s
Top speed
268 km/h
167 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
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
Power
239 hp
178 kW
0-100 km/h7.1 s
Top speed
255 km/h
158 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
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
Power
217 hp
162 kW
0-100 km/h7.5 s
Top speed
246 km/h
153 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
BMW4 Series Convertible (F33)420i184 hp
Power
184 hp
137 kW
0-100 km/h8.3 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 Convertible (F33)420i (Stage 3)276 hp
Power
276 hp
206 kW
0-100 km/h6.4 s
Top speed
268 km/h
167 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
Power
239 hp
178 kW
0-100 km/h7.1 s
Top speed
255 km/h
158 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
Power
217 hp
162 kW
0-100 km/h7.5 s
Top speed
246 km/h
153 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i184 hp
Power
184 hp
137 kW
0-100 km/h8.3 s
Top speed
230 km/h
143 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

BMW 4 Series Convertible (F33) 420i (Stage 3) 276 hp 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 Convertible (F33)420i (Stage 3)276 hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
6.4 s
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
7.1 s
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
7.5 s
BMW4 Series Convertible (F33)420i184 hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
8.3 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 Convertible (F33)420i (Stage 3)276 hp
165 hp/t
123 kW/t
6.1 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
143 hp/t
106 kW/t
7.0 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
130 hp/t
97 kW/t
7.7 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
BMW4 Series Convertible (F33)420i184 hp
110 hp/t
82 kW/t
9.1 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Convertible (F33)420i (Stage 3)276 hpBMW4 Series Convertible (F33)420i (Stage 2)239 hpBMW4 Series Convertible (F33)420i (Stage 1)217 hpBMW4 Series Convertible (F33)420i184 hp
Power
276 hp
206 kW
239 hp
178 kW
217 hp
162 kW
184 hp
137 kW
Torque
419 Nm
309 lb-ft
365 Nm
269 lb-ft
329 Nm
243 lb-ft
270 Nm
199 lb-ft
Acceleration
6.4 s
7.1 s
7.5 s
8.3 s
Top speed
268 km/h
167 mph
255 km/h
158 mph
246 km/h
153 mph
230 km/h
143 mph
Lightness
1,675 kg
3,693 lb
1,675 kg
3,693 lb
1,675 kg
3,693 lb
1,675 kg
3,693 lb
Fuel consumption
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
Practicality
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
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
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
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
909 km
565 mi
909 km
565 mi
909 km
565 mi
909 km
565 mi
CO2 score
154 g/km
154 g/km
154 g/km
154 g/km
Trunk score
370 L
13.1 cu ft
370 L
13.1 cu ft
370 L
13.1 cu ft
370 L
13.1 cu ft
Power-to-weight score
165 hp/t
123 kW/t
6.1 kg/hp
143 hp/t
106 kW/t
7.0 kg/hp
130 hp/t
97 kW/t
7.7 kg/hp
110 hp/t
82 kW/t
9.1 kg/hp
Overall
Fixed score
Fixed score
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 Convertible (F33) 420i (Stage 3) 276 hpBMW 4 Series Convertible (F33) 420i (Stage 2) 239 hpBMW 4 Series Convertible (F33) 420i (Stage 1) 217 hpBMW 4 Series Convertible (F33) 420i 184 hp
Consumption6.6 L/100 km35.6 mpg US42.8 mpg UK6.6 L/100 km35.6 mpg US42.8 mpg UK6.6 L/100 km35.6 mpg US42.8 mpg UK6.6 L/100 km35.6 mpg US42.8 mpg UK
Cost / 100 km11.55 LC100 km11.55 LC100 km11.55 LC100 km11.55 LC100 km
Cost / 100 mi18.59 LC100 mi18.59 LC100 mi18.59 LC100 mi18.59 LC100 mi
Annual fuel used990 L262 US gal218 UK gal990 L262 US gal218 UK gal990 L262 US gal218 UK gal990 L262 US gal218 UK gal
Annual fuel cost1,733 LC/year1,733 LC/year1,733 LC/year1,733 LC/year

Head-to-head comparisons

BMW 4 Series Convertible (F33) 420i (Stage 3) 276 hp

  • Has 37 hp more
  • Has 54 Nm more
  • Is 0.6 s quicker from 0-100 km/h
  • Has 13 km/h (8 mph) higher top speed
  • Has 22 hp/t better power-to-weight

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

Cons

  • Highest CO2 emissions

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Popular comparisons

BMW 4 Series Convertible (F33) 420i · Stage 3 vs BMW 4 Series Convertible (F33) 420i · Stage 2 vs BMW 4 Series Convertible (F33) 420i · Stage 1 vs BMW 4 Series Convertible (F33) 420i - car comparison - FastVsFaster