Car comparison

Mini Convertible (F57) · Facelift 2021 Cooper S 2.0vsBMW 4 Series Convertible (F33) · Facelift 2017 420i

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

New comparison

Mini Convertible (F57) · Facelift 2021

Cooper S 2.0

178 hp1998 ccGasolineFWDManualTurbochargedCabriolet / convertible2021-2022

BMW 4 Series Convertible (F33) · Facelift 2017

420i

184 hp1998 ccGasolineRWDManualTurbochargedCabriolet / convertible2017-2020

Comparison overview

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

BMW 4 Series Convertible (F33) Facelift 2017 420i

Most powerful
184 hp
137 kW
Highest torque
290 Nm
214 lb-ft
Lowest combined fuel consumption
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
Lowest city consumption
8.6 L/100 km
27.4 mpg US
32.8 mpg UK
Best estimated range
909 km
565 mi
Largest trunk
370 L
Best overall score
47/100
Best practicality score
47/100

Mini Convertible (F57) Facelift 2021 Cooper S 2.0

Quickest 0-100 km/h
7.1 s
Fastest top speed
230 km/h
143 mph
Lightest
1,305 kg
2,877 lb
Best power-to-weight
136 hp/t
102 kW/t
7.3 kg/hp
Lowest highway consumption
5.5 L/100 km
42.8 mpg US
51.4 mpg UK
Best performance score
50/100
Best economy score
89/100

Specification comparison

Specification comparison
Model	MiniConvertible (F57)Facelift 2021Cooper S 2.0	BMW4 Series Convertible (F33)Facelift 2017420i
Power	178hp133kW	184hp137kW
Torque	280Nm207lb-ft	290Nm214lb-ft
Curb weight	1,305kg2,877lb	1,700kg3,748lb
Gross weight	1,745kg3,847lb	2,170kg4,784lb
Top speed	230 km/h 143 mph	230 km/h 143 mph
To 99% top speed	90.3s99% target: 228 km/h / 141 mph Calculated	105.7s99% target: 228 km/h / 141 mph Calculated
0-100 km/h	7.1s	8.2s
0-200 km/h	33.4s Calculated	39.0s Calculated
0-60 mph	6.7s Calculated	7.7s Calculated
Fuel consumption	6.7L/100 km35.1mpg US42.2mpg UK	6.6L/100 km35.6mpg US42.8mpg UK
Fuel consumption city	8.7L/100 km27mpg US32.5mpg UK	8.6L/100 km27.4mpg US32.8mpg UK
Fuel consumption highway	5.5L/100 km42.8mpg US51.4mpg UK	5.5L/100 km42.8mpg US51.4mpg UK
Quarter mile	15.1s Calculated	15.9s Calculated
Power-to-weight	136hp/t102kW/t62hp/1000 lb Calculated	108hp/t81kW/t49hp/1000 lb Calculated
Torque-to-weight	215Nm/t144lb-ft/ton Calculated	171Nm/t114lb-ft/ton Calculated
Estimated range	657km408mi Calculated	909km565mi Calculated
Displacement	1,998cc122cu in	1,998cc122cu in
Length	3,876mm153in	4,640mm183in
Width	1,727mm68in	1,825mm72in
Height	1,415mm56in	1,384mm54in
Wheelbase	2,495mm98in	2,810mm111in
Front track	1,485mm58in	1,544mm61in
Rear track	1,485mm58in	1,593mm63in
Ground clearance	115mm5in	130mm5in
Trunk volume	160L	370L
Max trunk volume	215L	-
Doors	2	2
Seats	4	4
Fuel tank	44L	60L
CO2 emissions	-	153g/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.

Mini Convertible (F57) Facelift 2021 Cooper S 2.0BMW 4 Series Convertible (F33) Facelift 2017 420iPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
MiniConvertible (F57)Facelift 2021Cooper S 2.0	5,000-5,500 rpm	1,350-4,200 rpm	5,750 rpm
BMW4 Series Convertible (F33)Facelift 2017420i	5,000 rpm	1,350-4,600 rpm	5,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	MiniConvertible (F57)Facelift 2021Cooper S 2.0	BMW4 Series Convertible (F33)Facelift 2017420i
	Acceleration checkpoints
0-60 mph 0-97 km/h	6.7 s	7.7 s
0-100 km/h 0-62 mph	7.1 s	8.2 s
0-200 km/h 0-124 mph	33.4 s	39.0 s
Top speed	230 km/h 143 mph	230 km/h 143 mph
	Drag race simulation
60 ft 18 m	2.4 s	2.5 s
330 ft 101 m	6.5 s	6.8 s
1/8 mile 201 m	9.8 s	10.4 s
1000 ft 305 m	12.7 s	13.4 s
1/4 mile 402 m	15.1 s	15.9 s
Trap speed 1/4 mile 402 m	150 km/h 93 mph	144 km/h 89 mph

Power comparison

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

Chart data table
Vehicle	Value
MiniConvertible (F57)Facelift 2021Cooper S 2.0	178 hp 133 kW
BMW4 Series Convertible (F33)Facelift 2017420i	184 hp 137 kW

BMW 4 Series Convertible (F33) Facelift 2017 420i has 6 hp more than Mini Convertible (F57) Facelift 2021 Cooper S 2.0.

The biggest power difference is between Mini Convertible (F57) Facelift 2021 Cooper S 2.0 and BMW 4 Series Convertible (F33) Facelift 2017 420i: 6 hp (4 kW).

Torque comparison

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

Chart data table
Vehicle	Value
MiniConvertible (F57)Facelift 2021Cooper S 2.0	280 Nm 207 lb-ft
BMW4 Series Convertible (F33)Facelift 2017420i	290 Nm 214 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
MiniConvertible (F57)Facelift 2021Cooper S 2.0	1,305 kg 2,877 lb
BMW4 Series Convertible (F33)Facelift 2017420i	1,700 kg 3,748 lb

Top speed without limiter comparison

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

Chart data table
Vehicle	Value
MiniConvertible (F57)Facelift 2021Cooper S 2.0	230 km/h 143 mph
BMW4 Series Convertible (F33)Facelift 2017420i	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
Vehicle	Value
MiniConvertible (F57)Facelift 2021Cooper S 2.0	7.1 s
BMW4 Series Convertible (F33)Facelift 2017420i	8.2 s

Although BMW 4 Series Convertible (F33) Facelift 2017 420i has more power, Mini Convertible (F57) Facelift 2021 Cooper S 2.0 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mini Convertible (F57) Facelift 2021 Cooper S 2.0 and BMW 4 Series Convertible (F33) Facelift 2017 420i: 1.1 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
Vehicle	Value
MiniConvertible (F57)Facelift 2021Cooper S 2.0	6.7 L/100 km 35.1 mpg US 42.2 mpg UK
BMW4 Series Convertible (F33)Facelift 2017420i	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
Vehicle	Value
MiniConvertible (F57)Facelift 2021Cooper S 2.0	136 hp/t 102 kW/t 7.3 kg/hp
BMW4 Series Convertible (F33)Facelift 2017420i	108 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
Vehicle	Value
MiniConvertible (F57)Facelift 2021Cooper S 2.0	657 km 408 mi
BMW4 Series Convertible (F33)Facelift 2017420i	909 km 565 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
MiniConvertible (F57)Facelift 2021Cooper S 2.0	178 hp 133 kW	7.1 s	230 km/h 143 mph
BMW4 Series Convertible (F33)Facelift 2017420i	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.

Vehicle

Performance score

Practicality score

MiniConvertible (F57)Facelift 2021Cooper S 2.0

Power	178 hp 133 kW
0-100 km/h	7.1 s
Top speed 230 km/h 143 mph

Doors/seats	2 doors 4 seats
Trunk	160 L 5.7 cu ft
Length	3,876 mm 152.6 in
Height	1,415 mm 55.7 in

BMW4 Series Convertible (F33)Facelift 2017420i

Power	184 hp 137 kW
0-100 km/h	8.2 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

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

MiniConvertible (F57)Facelift 2021Cooper S 2.0

Power	178 hp 133 kW
0-100 km/h	7.1 s
Top speed 230 km/h 143 mph

6.7 L/100 km

35.1 mpg US

42.2 mpg UK

BMW4 Series Convertible (F33)Facelift 2017420i

Power	184 hp 137 kW
0-100 km/h	8.2 s
Top speed 230 km/h 143 mph

6.6 L/100 km

35.6 mpg US

42.8 mpg UK

Mini Convertible (F57) Facelift 2021 Cooper S 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
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
MiniConvertible (F57)Facelift 2021Cooper S 2.0	6.7 L/100 km 35.1 mpg US 42.2 mpg UK	7.1 s
BMW4 Series Convertible (F33)Facelift 2017420i	6.6 L/100 km 35.6 mpg US 42.8 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
MiniConvertible (F57)Facelift 2021Cooper S 2.0	136 hp/t 102 kW/t 7.3 kg/hp	6.7 L/100 km 35.1 mpg US 42.2 mpg UK
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

Detailed score breakdown

Vehicle

MiniConvertible (F57)Facelift 2021Cooper S 2.0

BMW4 Series Convertible (F33)Facelift 2017420i

Power

178 hp

133 kW

184 hp

137 kW

Torque

280 Nm

207 lb-ft

290 Nm

214 lb-ft

Acceleration

7.1 s

8.2 s

Top speed

230 km/h

143 mph

230 km/h

143 mph

Lightness

1,305 kg

2,877 lb

1,700 kg

3,748 lb

Fuel consumption

6.7 L/100 km

35.1 mpg US

42.2 mpg UK

6.6 L/100 km

35.6 mpg US

42.8 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	160 L 5.7 cu ft
Length	3,876 mm 152.6 in
Height	1,415 mm 55.7 in

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

Range score

657 km

408 mi

909 km

565 mi

CO2 score

153 g/km

Trunk score

160 L

5.7 cu ft

370 L

13.1 cu ft

Power-to-weight score

136 hp/t

102 kW/t

7.3 kg/hp

108 hp/t

81 kW/t

9.2 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Mini Convertible (F57) Facelift 2021 Cooper S 2.0	BMW 4 Series Convertible (F33) Facelift 2017 420i
Consumption	6.7 L/100 km35.1 mpg US42.2 mpg UK	6.6 L/100 km35.6 mpg US42.8 mpg UK
Cost / 100 km	11.73 LC100 km	11.55 LC100 km
Cost / 100 mi	18.87 LC100 mi	18.59 LC100 mi
Annual fuel used	1,005 L265 US gal221 UK gal	990 L262 US gal218 UK gal
Annual fuel cost	1,759 LC/year	1,733 LC/year