Car comparison

BMW 4 Series Convertible (F33) · Facelift 2017 420ivsMini Convertible (F57) · Facelift 2018 Cooper SD 2.0

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

New comparison

BMW 4 Series Convertible (F33) · Facelift 2017

420i

184 hp1998 ccGasolineRWDManualTurbochargedCabriolet / convertible2017-2020
VS

Mini Convertible (F57) · Facelift 2018

Cooper SD 2.0

170 hp1995 ccDieselFWDAutomaticTurbochargedCabriolet / convertible2018-2018

Comparison overview

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

Best choices

Mini Convertible (F57) Facelift 2018 Cooper SD 2.0

  • Quickest 0-100 km/h
    7.7 s
  • Highest torque
    360 Nm
    266 lb-ft
  • Lightest
    1,305 kg
    2,877 lb
  • Best power-to-weight
    130 hp/t
    97 kW/t
    7.7 kg/hp
  • Lowest combined fuel consumption
    4.4 L/100 km
    53.5 mpg US
    64.2 mpg UK
  • Lowest city consumption
    5.0 L/100 km
    47.0 mpg US
    56.5 mpg UK
  • Lowest highway consumption
    4.1 L/100 km
    57.4 mpg US
    68.9 mpg UK
  • Lowest CO2 emissions
    116 g/km
  • Best estimated range
    1,000 km
    621 mi
  • Best performance score
    49/100
  • Best economy score
    95/100

Specification comparison

Specification comparison
ModelBMW4 Series Convertible (F33)Facelift 2017420iMiniConvertible (F57)Facelift 2018Cooper SD 2.0
Power
184hp137kW
170hp127kW
Torque
290Nm214lb-ft
360Nm266lb-ft
Curb weight
1,700kg3,748lb
1,305kg2,877lb
Gross weight
2,170kg4,784lb
1,770kg3,902lb
Top speed
230 km/h
143 mph
218 km/h
135 mph
To 99% top speed
105.7s99% target: 228 km/h / 141 mph
Calculated
90.5s99% target: 216 km/h / 134 mph
Calculated
0-100 km/h
8.2s
7.7s
0-200 km/h
39.0s
Calculated
42.8s
Calculated
0-60 mph
7.7s
Calculated
7.3s
Calculated
Fuel consumption
6.6L/100 km35.6mpg US42.8mpg UK
4.4L/100 km53.5mpg US64.2mpg UK
Fuel consumption city
8.6L/100 km27.4mpg US32.8mpg UK
5L/100 km47mpg US56.5mpg UK
Fuel consumption highway
5.5L/100 km42.8mpg US51.4mpg UK
4.1L/100 km57.4mpg US68.9mpg UK
Quarter mile
15.9s
Calculated
15.6s
Calculated
Power-to-weight
108hp/t81kW/t49hp/1000 lb
Calculated
130hp/t97kW/t59hp/1000 lb
Calculated
Torque-to-weight
171Nm/t114lb-ft/ton
Calculated
276Nm/t185lb-ft/ton
Calculated
Estimated range
909km565mi
Calculated
1,000km621mi
Calculated
Displacement
1,998cc122cu in
1,995cc122cu in
Length
4,640mm183in
3,850mm152in
Width
1,825mm72in
1,727mm68in
Height
1,384mm54in
1,415mm56in
Wheelbase
2,810mm111in
2,495mm98in
Front track
1,544mm61in
1,485mm58in
Rear track
1,593mm63in
1,485mm58in
Ground clearance
130mm5in
115mm5in
Trunk volume
370L
160L
Max trunk volume-
215L
Doors
2
2
Seats
4
4
Fuel tank
60L
44L
CO2 emissions
153g/km
116g/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) Facelift 2017 420iMini Convertible (F57) Facelift 2018 Cooper SD 2.0PowerTorque
  • BMW 4 Series Convertible (F33) Facelift 2017 420i: Power / Torque
  • Mini Convertible (F57) Facelift 2018 Cooper SD 2.0: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMW4 Series Convertible (F33)Facelift 2017420i5,000 rpm1,350-4,600 rpm5,250 rpm
MiniConvertible (F57)Facelift 2018Cooper SD 2.04,000 rpm1,500-2,750 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMW4 Series Convertible (F33)Facelift 2017420iMiniConvertible (F57)Facelift 2018Cooper SD 2.0
Acceleration checkpoints
0-60 mph
0-97 km/h
7.7 s
7.3 s
0-100 km/h
0-62 mph
8.2 s
7.7 s
0-200 km/h
0-124 mph
39.0 s
42.8 s
Top speed
230 km/h
143 mph
218 km/h
135 mph
Drag race simulation
60 ft
18 m
2.5 s
2.5 s
330 ft
101 m
6.8 s
6.6 s
1/8 mile
201 m
10.4 s
10.1 s
1000 ft
305 m
13.4 s
13.1 s
1/4 mile
402 m
15.9 s
15.6 s
Trap speed
1/4 mile
402 m
144 km/h
89 mph
145 km/h
90 mph

Power comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)Facelift 2017420i
184 hp
137 kW
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
170 hp
127 kW

BMW 4 Series Convertible (F33) Facelift 2017 420i has 14 hp more than Mini Convertible (F57) Facelift 2018 Cooper SD 2.0.

The biggest power difference is between Mini Convertible (F57) Facelift 2018 Cooper SD 2.0 and BMW 4 Series Convertible (F33) Facelift 2017 420i: 14 hp (10 kW).

Torque comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)Facelift 2017420i
290 Nm
214 lb-ft
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
360 Nm
266 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)Facelift 2017420i
1,700 kg
3,748 lb
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
1,305 kg
2,877 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 Convertible (F33)Facelift 2017420i
230 km/h
143 mph
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
218 km/h
135 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)Facelift 2017420i8.2 s
MiniConvertible (F57)Facelift 2018Cooper SD 2.07.7 s

Although BMW 4 Series Convertible (F33) Facelift 2017 420i has more power, Mini Convertible (F57) Facelift 2018 Cooper SD 2.0 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mini Convertible (F57) Facelift 2018 Cooper SD 2.0 and BMW 4 Series Convertible (F33) Facelift 2017 420i: 0.5 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)Facelift 2017420i
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
4.4 L/100 km
53.5 mpg US
64.2 mpg UK

The biggest fuel consumption difference is between Mini Convertible (F57) Facelift 2018 Cooper SD 2.0 and BMW 4 Series Convertible (F33) Facelift 2017 420i: 2.2 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 Convertible (F33)Facelift 2017420i
108 hp/t
81 kW/t
9.2 kg/hp
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
130 hp/t
97 kW/t
7.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
BMW4 Series Convertible (F33)Facelift 2017420i
909 km
565 mi
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
1,000 km
621 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMW4 Series Convertible (F33)Facelift 2017420i
184 hp
137 kW
8.2 s
230 km/h
143 mph
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
170 hp
127 kW
7.7 s
218 km/h
135 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)Facelift 2017420i
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
4,640 mm
182.7 in
Height
1,384 mm
54.5 in
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
Power
170 hp
127 kW
0-100 km/h7.7 s
Top speed
218 km/h
135 mph
Doors/seats
2 doors
4 seats
Trunk
160 L
5.7 cu ft
Length
3,850 mm
151.6 in
Height
1,415 mm
55.7 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)Facelift 2017420i
Power
184 hp
137 kW
0-100 km/h8.2 s
Top speed
230 km/h
143 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
Power
170 hp
127 kW
0-100 km/h7.7 s
Top speed
218 km/h
135 mph
4.4 L/100 km
53.5 mpg US
64.2 mpg UK

Mini Convertible (F57) Facelift 2018 Cooper SD 2.0 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)Facelift 2017420i
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
8.2 s
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
4.4 L/100 km
53.5 mpg US
64.2 mpg UK
7.7 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)Facelift 2017420i
108 hp/t
81 kW/t
9.2 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
MiniConvertible (F57)Facelift 2018Cooper SD 2.0
130 hp/t
97 kW/t
7.7 kg/hp
4.4 L/100 km
53.5 mpg US
64.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleBMW4 Series Convertible (F33)Facelift 2017420iMiniConvertible (F57)Facelift 2018Cooper SD 2.0
Power
184 hp
137 kW
170 hp
127 kW
Torque
290 Nm
214 lb-ft
360 Nm
266 lb-ft
Acceleration
8.2 s
7.7 s
Top speed
230 km/h
143 mph
218 km/h
135 mph
Lightness
1,700 kg
3,748 lb
1,305 kg
2,877 lb
Fuel consumption
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
4.4 L/100 km
53.5 mpg US
64.2 mpg UK
Practicality
Doors/seats
2 doors
4 seats
Trunk
370 L
13.1 cu ft
Length
4,640 mm
182.7 in
Height
1,384 mm
54.5 in
Doors/seats
2 doors
4 seats
Trunk
160 L
5.7 cu ft
Length
3,850 mm
151.6 in
Height
1,415 mm
55.7 in
Range score
909 km
565 mi
1,000 km
621 mi
CO2 score
153 g/km
116 g/km
Trunk score
370 L
13.1 cu ft
160 L
5.7 cu ft
Power-to-weight score
108 hp/t
81 kW/t
9.2 kg/hp
130 hp/t
97 kW/t
7.7 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 Convertible (F33) Facelift 2017 420iMini Convertible (F57) Facelift 2018 Cooper SD 2.0
Consumption6.6 L/100 km35.6 mpg US42.8 mpg UK4.4 L/100 km53.5 mpg US64.2 mpg UK
Cost / 100 km11.55 LC100 km7.70 LC100 km
Cost / 100 mi18.59 LC100 mi12.39 LC100 mi
Annual fuel used990 L262 US gal218 UK gal660 L174 US gal145 UK gal
Annual fuel cost1,733 LC/year1,155 LC/year

Head-to-head comparisons

BMW 4 Series Convertible (F33) Facelift 2017 420i

  • Has 14 hp more
  • Has 12 km/h (7 mph) higher top speed
  • Has 210 L more trunk volume

Pros

  • Highest top speed
  • Most powerful
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Highest CO2 emissions

Mini Convertible (F57) Facelift 2018 Cooper SD 2.0

  • Has 70 Nm more
  • Is 395 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Uses 2.2 L/100 km less fuel
  • Has 22 hp/t better power-to-weight
  • Has 91 km (56 mi) more estimated range
  • Emits 37 g/km less CO2

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 power
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW 4 Series Convertible (F33) 420i
Mini Convertible (F57) Cooper SD 2.0
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2 vehicles selected

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BMW 4 Series Convertible (F33) · Facelift 2017 420i vs Mini Convertible (F57) · Facelift 2018 Cooper SD 2.0 - car comparison - FastVsFaster