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 ccGasolineRWDManualTurbochargedCabriolet / convertible2014-2016
VS

BMW 4 Series Convertible (F33)

420i (Stage 2)

239 hp1997 ccGasolineRWDManualTurbochargedCabriolet / convertible2014-2016
VS

BMW 4 Series Convertible (F33)

420i (Stage 1)

217 hp1997 ccGasolineRWDManualTurbochargedCabriolet / convertible2014-2016
VS

BMW 4 Series Convertible (F33)

420i

184 hp1997 ccGasolineRWDManualTurbochargedCabriolet / 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
    269 km/h
    167 mph
  • Most powerful
    276 hp
    206 kW
  • Highest torque
    419 Nm
    309 lb-ft
  • Lightest
    1,650 kg
    3,638 lb
  • Best power-to-weight
    167 hp/t
    125 kW/t
    6.0 kg/hp
  • Lowest combined fuel consumption
    6.8 L/100 km
    34.6 mpg US
    41.5 mpg UK
  • Lowest city consumption
    9.3 L/100 km
    25.3 mpg US
    30.4 mpg UK
  • Lowest highway consumption
    5.4 L/100 km
    43.6 mpg US
    52.3 mpg UK
  • Lowest CO2 emissions
    159 g/km
  • Best estimated range
    882 km
    548 mi
  • Largest trunk
    370 L
  • Best overall score
    58/100
  • Best performance score
    63/100
  • 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
1,650kg3,638lb
1,650kg3,638lb
1,650kg3,638lb
1,650kg3,638lb
Gross weight
2,120kg4,674lb
2,120kg4,674lb
2,120kg4,674lb
2,120kg4,674lb
Top speed
269 km/h
167 mph
+39 km/h
258 km/h
160 mph
+28 km/h
249 km/h
155 mph
+19 km/h
230 km/h
143 mph
To 99% top speed
94.4s99% target: 266 km/h / 165 mph-10.3 s
Calculated
100.7s99% target: 255 km/h / 159 mph-3.9 s
Calculated
103.7s99% target: 247 km/h / 153 mph-0.9 s
Calculated
104.6s99% target: 228 km/h / 141 mph
Calculated
0-100 km/h
6.4s-1.8 s
7.0s-1.2 s
7.4s-0.8 s
8.2s
0-200 km/h
22.5s-16.2 s
Calculated
26.3s-12.4 s
Calculated
29.6s-9.1 s
Calculated
38.7s
Calculated
0-60 mph
6.0s-1.7 s
Calculated
6.6s-1.1 s
Calculated
7.0s-0.7 s
Calculated
7.7s
Calculated
Fuel consumption
6.8L/100 km34.6mpg US41.5mpg UK
6.8L/100 km34.6mpg US41.5mpg UK
6.8L/100 km34.6mpg US41.5mpg UK
6.8L/100 km34.6mpg US41.5mpg UK
Fuel consumption city
9.3L/100 km25.3mpg US30.4mpg UK
9.3L/100 km25.3mpg US30.4mpg UK
9.3L/100 km25.3mpg US30.4mpg UK
9.3L/100 km25.3mpg US30.4mpg UK
Fuel consumption highway
5.4L/100 km43.6mpg US52.3mpg UK
5.4L/100 km43.6mpg US52.3mpg UK
5.4L/100 km43.6mpg US52.3mpg UK
5.4L/100 km43.6mpg US52.3mpg UK
Quarter mile
14.4s-1.5 s
Calculated
14.9s-1.0 s
Calculated
15.3s-0.6 s
Calculated
15.9s
Calculated
Power-to-weight
167hp/t125kW/t76hp/1000 lb
Calculated
145hp/t108kW/t66hp/1000 lb
Calculated
132hp/t98kW/t60hp/1000 lb
Calculated
112hp/t83kW/t51hp/1000 lb
Calculated
Torque-to-weight
254Nm/t170lb-ft/ton
Calculated
221Nm/t148lb-ft/ton
Calculated
200Nm/t134lb-ft/ton
Calculated
164Nm/t109lb-ft/ton
Calculated
Estimated range
882km548mi
Calculated
882km548mi
Calculated
882km548mi
Calculated
882km548mi
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
159g/km
159g/km
159g/km
159g/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
6.0 s
6.6 s
7.0 s
7.7 s
0-100 km/h
0-62 mph
6.4 s
7.0 s
7.4 s
8.2 s
0-200 km/h
0-124 mph
22.5 s
26.3 s
29.6 s
38.7 s
Top speed
269 km/h
167 mph
258 km/h
160 mph
249 km/h
155 mph
230 km/h
143 mph
Drag race simulation
60 ft
18 m
2.4 s
2.4 s
2.5 s
2.6 s
330 ft
101 m
6.3 s
6.5 s
6.6 s
6.9 s
1/8 mile
201 m
9.4 s
9.8 s
10.0 s
10.4 s
1000 ft
305 m
12.1 s
12.6 s
12.9 s
13.4 s
1/4 mile
402 m
14.4 s
14.9 s
15.3 s
15.9 s
Trap speed
1/4 mile
402 m
163 km/h
101 mph
156 km/h
97 mph
152 km/h
94 mph
144 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: 1.8 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
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i184 hp
6.8 L/100 km
34.6 mpg US
41.5 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
167 hp/t
125 kW/t
6.0 kg/hp
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
145 hp/t
108 kW/t
6.9 kg/hp
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
132 hp/t
98 kW/t
7.6 kg/hp
BMW4 Series Convertible (F33)420i184 hp
112 hp/t
83 kW/t
9.0 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
269 km/h
167 mph
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
239 hp
178 kW
7.0 s
258 km/h
160 mph
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
217 hp
162 kW
7.4 s
249 km/h
155 mph
BMW4 Series Convertible (F33)420i184 hp
184 hp
137 kW
8.2 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
269 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/h7.0 s
Top speed
258 km/h
160 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/h7.4 s
Top speed
249 km/h
155 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/h8.2 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
269 km/h
167 mph
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
Power
239 hp
178 kW
0-100 km/h7.0 s
Top speed
258 km/h
160 mph
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
Power
217 hp
162 kW
0-100 km/h7.4 s
Top speed
249 km/h
155 mph
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i184 hp
Power
184 hp
137 kW
0-100 km/h8.2 s
Top speed
230 km/h
143 mph
6.8 L/100 km
34.6 mpg US
41.5 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
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
6.4 s
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
7.0 s
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
7.4 s
BMW4 Series Convertible (F33)420i184 hp
6.8 L/100 km
34.6 mpg US
41.5 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 Convertible (F33)420i (Stage 3)276 hp
167 hp/t
125 kW/t
6.0 kg/hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i (Stage 2)239 hp
145 hp/t
108 kW/t
6.9 kg/hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i (Stage 1)217 hp
132 hp/t
98 kW/t
7.6 kg/hp
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
BMW4 Series Convertible (F33)420i184 hp
112 hp/t
83 kW/t
9.0 kg/hp
6.8 L/100 km
34.6 mpg US
41.5 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
7.0 s
7.4 s
8.2 s
Top speed
269 km/h
167 mph
258 km/h
160 mph
249 km/h
155 mph
230 km/h
143 mph
Lightness
1,650 kg
3,638 lb
1,650 kg
3,638 lb
1,650 kg
3,638 lb
1,650 kg
3,638 lb
Fuel consumption
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
6.8 L/100 km
34.6 mpg US
41.5 mpg UK
6.8 L/100 km
34.6 mpg US
41.5 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
882 km
548 mi
882 km
548 mi
882 km
548 mi
882 km
548 mi
CO2 score
159 g/km
159 g/km
159 g/km
159 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
167 hp/t
125 kW/t
6.0 kg/hp
145 hp/t
108 kW/t
6.9 kg/hp
132 hp/t
98 kW/t
7.6 kg/hp
112 hp/t
83 kW/t
9.0 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
Consumption6.8 L/100 km34.6 mpg US41.5 mpg UK6.8 L/100 km34.6 mpg US41.5 mpg UK6.8 L/100 km34.6 mpg US41.5 mpg UK6.8 L/100 km34.6 mpg US41.5 mpg UK
Cost / 100 km11.90 LC100 km11.90 LC100 km11.90 LC100 km11.90 LC100 km
Cost / 100 mi19.15 LC100 mi19.15 LC100 mi19.15 LC100 mi19.15 LC100 mi
Annual fuel used1,020 L269 US gal224 UK gal1,020 L269 US gal224 UK gal1,020 L269 US gal224 UK gal1,020 L269 US gal224 UK gal
Annual fuel cost1,785 LC/year1,785 LC/year1,785 LC/year1,785 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 11 km/h (7 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