Car comparison

BMW 4 Series Convertible (F33) · Facelift 2017 420ivsMini Convertible (F57) · Facelift 2018 Cooper 1.5

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 ccGasolineRWDAutomaticTurbochargedCabriolet / convertible2017-2020

Mini Convertible (F57) · Facelift 2018

Cooper 1.5

136 hp1499 ccGasolineFWDManualTurbochargedCabriolet / convertible2018-2021

Comparison overview

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

BMW 4 Series Convertible (F33) Facelift 2017 420i

Quickest 0-100 km/h
8.4 s
Fastest top speed
230 km/h
143 mph
Most powerful
184 hp
137 kW
Highest torque
270 Nm
199 lb-ft
Best estimated range
968 km
601 mi
Largest trunk
370 L
Best overall score
46/100
Best performance score
46/100
Best practicality score
47/100

Mini Convertible (F57) Facelift 2018 Cooper 1.5

Lightest
1,230 kg
2,712 lb
Best power-to-weight
111 hp/t
82 kW/t
9.0 kg/hp
Lowest combined fuel consumption
5.7 L/100 km
41.3 mpg US
49.6 mpg UK
Lowest city consumption
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
Lowest highway consumption
4.9 L/100 km
48.0 mpg US
57.6 mpg UK
Lowest CO2 emissions
130 g/km
Best economy score
91/100

Specification comparison

Specification comparison
Model	BMW4 Series Convertible (F33)Facelift 2017420i	MiniConvertible (F57)Facelift 2018Cooper 1.5
Power	184hp137kW	136hp101kW
Torque	270Nm199lb-ft	220Nm162lb-ft
Curb weight	1,715kg3,781lb	1,230kg2,712lb
Gross weight	2,185kg4,817lb	1,670kg3,682lb
Top speed	230 km/h 143 mph	206 km/h 128 mph
To 99% top speed	108.6s99% target: 228 km/h / 141 mph Calculated	93.7s99% target: 204 km/h / 127 mph Calculated
0-100 km/h	8.4s	8.8s
0-200 km/h	40.0s Calculated	67.8s Calculated
0-60 mph	7.9s Calculated	8.3s Calculated
Fuel consumption	6.2L/100 km37.9mpg US45.6mpg UK	5.7L/100 km41.3mpg US49.6mpg UK
Fuel consumption city	8.1L/100 km29mpg US34.9mpg UK	7.1L/100 km33.1mpg US39.8mpg UK
Fuel consumption highway	5.1L/100 km46.1mpg US55.4mpg UK	4.9L/100 km48mpg US57.6mpg UK
Quarter mile	16.1s Calculated	16.4s Calculated
Power-to-weight	107hp/t80kW/t49hp/1000 lb Calculated	111hp/t82kW/t50hp/1000 lb Calculated
Torque-to-weight	157Nm/t105lb-ft/ton Calculated	179Nm/t120lb-ft/ton Calculated
Estimated range	968km601mi Calculated	702km436mi Calculated
Displacement	1,998cc122cu in	1,499cc91cu in
Length	4,640mm183in	3,821mm150in
Width	1,825mm72in	1,727mm68in
Height	1,384mm54in	1,415mm56in
Wheelbase	2,810mm111in	2,495mm98in
Front track	1,544mm61in	1,501mm59in
Rear track	1,593mm63in	1,501mm59in
Ground clearance	130mm5in	115mm5in
Trunk volume	370L	160L
Max trunk volume	-	215L
Doors	2	2
Seats	4	4
Fuel tank	60L	40L
CO2 emissions	144g/km	130g/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 1.5PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW4 Series Convertible (F33)Facelift 2017420i	5,000 rpm	1,350-4,600 rpm	5,250 rpm
MiniConvertible (F57)Facelift 2018Cooper 1.5	4,500-6,500 rpm	1,480-4,200 rpm	6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW4 Series Convertible (F33)Facelift 2017420i	MiniConvertible (F57)Facelift 2018Cooper 1.5
	Acceleration checkpoints
0-60 mph 0-97 km/h	7.9 s	8.3 s
0-100 km/h 0-62 mph	8.4 s	8.8 s
0-200 km/h 0-124 mph	40.0 s	67.8 s
Top speed	230 km/h 143 mph	206 km/h 128 mph
	Drag race simulation
60 ft 18 m	2.6 s	2.6 s
330 ft 101 m	6.9 s	7.0 s
1/8 mile 201 m	10.5 s	10.6 s
1000 ft 305 m	13.5 s	13.7 s
1/4 mile 402 m	16.1 s	16.4 s
Trap speed 1/4 mile 402 m	143 km/h 89 mph	138 km/h 86 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017420i	184 hp 137 kW
MiniConvertible (F57)Facelift 2018Cooper 1.5	136 hp 101 kW

BMW 4 Series Convertible (F33) Facelift 2017 420i has 48 hp more than Mini Convertible (F57) Facelift 2018 Cooper 1.5.

The biggest power difference is between Mini Convertible (F57) Facelift 2018 Cooper 1.5 and BMW 4 Series Convertible (F33) Facelift 2017 420i: 48 hp (36 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017420i	270 Nm 199 lb-ft
MiniConvertible (F57)Facelift 2018Cooper 1.5	220 Nm 162 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017420i	1,715 kg 3,781 lb
MiniConvertible (F57)Facelift 2018Cooper 1.5	1,230 kg 2,712 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
BMW4 Series Convertible (F33)Facelift 2017420i	230 km/h 143 mph
MiniConvertible (F57)Facelift 2018Cooper 1.5	206 km/h 128 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017420i	8.4 s
MiniConvertible (F57)Facelift 2018Cooper 1.5	8.8 s

The biggest 0-100 km/h difference is between BMW 4 Series Convertible (F33) Facelift 2017 420i and Mini Convertible (F57) Facelift 2018 Cooper 1.5: 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
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017420i	6.2 L/100 km 37.9 mpg US 45.6 mpg UK
MiniConvertible (F57)Facelift 2018Cooper 1.5	5.7 L/100 km 41.3 mpg US 49.6 mpg UK

The biggest fuel consumption difference is between Mini Convertible (F57) Facelift 2018 Cooper 1.5 and BMW 4 Series Convertible (F33) Facelift 2017 420i: 0.5 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017420i	107 hp/t 80 kW/t 9.3 kg/hp
MiniConvertible (F57)Facelift 2018Cooper 1.5	111 hp/t 82 kW/t 9.0 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)Facelift 2017420i	968 km 601 mi
MiniConvertible (F57)Facelift 2018Cooper 1.5	702 km 436 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMW4 Series Convertible (F33)Facelift 2017420i	184 hp 137 kW	8.4 s	230 km/h 143 mph
MiniConvertible (F57)Facelift 2018Cooper 1.5	136 hp 101 kW	8.8 s	206 km/h 128 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

BMW4 Series Convertible (F33)Facelift 2017420i

Power	184 hp 137 kW
0-100 km/h	8.4 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 1.5

Power	136 hp 101 kW
0-100 km/h	8.8 s
Top speed 206 km/h 128 mph

Doors/seats	2 doors 4 seats
Trunk	160 L 5.7 cu ft
Length	3,821 mm 150.4 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.

Vehicle

Performance score

Fuel economy score

BMW4 Series Convertible (F33)Facelift 2017420i

Power	184 hp 137 kW
0-100 km/h	8.4 s
Top speed 230 km/h 143 mph

6.2 L/100 km

37.9 mpg US

45.6 mpg UK

MiniConvertible (F57)Facelift 2018Cooper 1.5

Power	136 hp 101 kW
0-100 km/h	8.8 s
Top speed 206 km/h 128 mph

5.7 L/100 km

41.3 mpg US

49.6 mpg UK

BMW 4 Series Convertible (F33) Facelift 2017 420i 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
BMW4 Series Convertible (F33)Facelift 2017420i	6.2 L/100 km 37.9 mpg US 45.6 mpg UK	8.4 s
MiniConvertible (F57)Facelift 2018Cooper 1.5	5.7 L/100 km 41.3 mpg US 49.6 mpg UK	8.8 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
BMW4 Series Convertible (F33)Facelift 2017420i	107 hp/t 80 kW/t 9.3 kg/hp	6.2 L/100 km 37.9 mpg US 45.6 mpg UK
MiniConvertible (F57)Facelift 2018Cooper 1.5	111 hp/t 82 kW/t 9.0 kg/hp	5.7 L/100 km 41.3 mpg US 49.6 mpg UK

Detailed score breakdown

Vehicle

BMW4 Series Convertible (F33)Facelift 2017420i

MiniConvertible (F57)Facelift 2018Cooper 1.5

Power

184 hp

137 kW

136 hp

101 kW

Torque

270 Nm

199 lb-ft

220 Nm

162 lb-ft

Acceleration

8.4 s

8.8 s

Top speed

230 km/h

143 mph

206 km/h

128 mph

Lightness

1,715 kg

3,781 lb

1,230 kg

2,712 lb

Fuel consumption

6.2 L/100 km

37.9 mpg US

45.6 mpg UK

5.7 L/100 km

41.3 mpg US

49.6 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	3,821 mm 150.4 in
Height	1,415 mm 55.7 in

Range score

968 km

601 mi

702 km

436 mi

CO2 score

144 g/km

130 g/km

Trunk score

370 L

13.1 cu ft

160 L

5.7 cu ft

Power-to-weight score

107 hp/t

80 kW/t

9.3 kg/hp

111 hp/t

82 kW/t

9.0 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	BMW 4 Series Convertible (F33) Facelift 2017 420i	Mini Convertible (F57) Facelift 2018 Cooper 1.5
Consumption	6.2 L/100 km37.9 mpg US45.6 mpg UK	5.7 L/100 km41.3 mpg US49.6 mpg UK
Cost / 100 km	10.85 LC100 km	9.98 LC100 km
Cost / 100 mi	17.46 LC100 mi	16.05 LC100 mi
Annual fuel used	930 L246 US gal205 UK gal	855 L226 US gal188 UK gal
Annual fuel cost	1,628 LC/year	1,496 LC/year