Car comparison

BMW 4 Series Convertible (F33) 420ivsAUDI A5 Cabriolet (8F7) · Facelift 2011 1.8 TFSI

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

New comparison

BMW 4 Series Convertible (F33)

420i

184 hp1998 ccGasolineRWDAutomaticTurbochargedCabriolet / convertible2016-2016

AUDI A5 Cabriolet (8F7) · Facelift 2011

1.8 TFSI

177 hp1798 ccGasolineFWDManualTurbochargedCabriolet / convertible2015-2016

Comparison overview

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

BMW 4 Series Convertible (F33) 420i

Quickest 0-100 km/h
8.4 s
Fastest top speed
230 km/h
143 mph
Most powerful
184 hp
137 kW
Lowest combined fuel consumption
6.2 L/100 km
37.9 mpg US
45.6 mpg UK
Lowest city consumption
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
Lowest highway consumption
5.1 L/100 km
46.1 mpg US
55.4 mpg UK
Lowest CO2 emissions
144 g/km
Best estimated range
968 km
601 mi
Largest trunk
370 L
Best overall score
46/100
Best performance score
46/100
Best economy score
90/100
Best practicality score
47/100

AUDI A5 Cabriolet (8F7) Facelift 2011 1.8 TFSI

Highest torque
320 Nm
236 lb-ft
Lightest
1,620 kg
3,571 lb
Best power-to-weight
109 hp/t
81 kW/t
9.2 kg/hp

Specification comparison

Specification comparison
Model	BMW4 Series Convertible (F33)420i	AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI
Power	184hp137kW	177hp132kW
Torque	270Nm199lb-ft	320Nm236lb-ft
Curb weight	1,715kg3,781lb	1,620kg3,571lb
Gross weight	2,185kg4,817lb	2,120kg4,674lb
Top speed	230 km/h 143 mph	223 km/h 139 mph
To 99% top speed	108.6s99% target: 228 km/h / 141 mph Calculated	107.8s99% target: 221 km/h / 137 mph Calculated
0-100 km/h	8.4s	8.7s
0-200 km/h	40.0s Calculated	45.2s Calculated
0-60 mph	7.9s Calculated	8.2s Calculated
Fuel consumption	6.2L/100 km37.9mpg US45.6mpg UK	6.7L/100 km35.1mpg US42.2mpg UK
Fuel consumption city	8.1L/100 km29mpg US34.9mpg UK	8.1L/100 km29mpg US34.9mpg UK
Fuel consumption highway	5.1L/100 km46.1mpg US55.4mpg UK	5.8L/100 km40.6mpg US48.7mpg UK
Quarter mile	16.1s Calculated	16.3s Calculated
Power-to-weight	107hp/t80kW/t49hp/1000 lb Calculated	109hp/t81kW/t50hp/1000 lb Calculated
Torque-to-weight	157Nm/t105lb-ft/ton Calculated	198Nm/t132lb-ft/ton Calculated
Estimated range	968km601mi Calculated	940km584mi Calculated
Displacement	1,998cc122cu in	1,798cc110cu in
Length	4,638mm183in	4,626mm182in
Width	1,825mm72in	1,854mm73in
Height	1,384mm54in	1,383mm54in
Wheelbase	2,810mm111in	2,751mm108in
Front track	1,545mm61in	1,590mm63in
Rear track	1,594mm63in	1,577mm62in
Ground clearance	130mm5in	-
Trunk volume	370L	320L
Max trunk volume	-	750L
Doors	2	2
Seats	4	4
Fuel tank	60L	63L
CO2 emissions	144g/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) 420iAUDI A5 Cabriolet (8F7) Facelift 2011 1.8 TFSIPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW4 Series Convertible (F33)420i	5,000 rpm	1,350-4,600 rpm	5,250 rpm
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	4,000-6,200 rpm	1,400-3,850 rpm	6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW4 Series Convertible (F33)420i	AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI
	Acceleration checkpoints
0-60 mph 0-97 km/h	7.9 s	8.2 s
0-100 km/h 0-62 mph	8.4 s	8.7 s
0-200 km/h 0-124 mph	40.0 s	45.2 s
Top speed	230 km/h 143 mph	223 km/h 139 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	16.3 s
Trap speed 1/4 mile 402 m	143 km/h 89 mph	140 km/h 87 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)420i	184 hp 137 kW
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	177 hp 132 kW

BMW 4 Series Convertible (F33) 420i has 7 hp more than AUDI A5 Cabriolet (8F7) Facelift 2011 1.8 TFSI.

The biggest power difference is between AUDI A5 Cabriolet (8F7) Facelift 2011 1.8 TFSI and BMW 4 Series Convertible (F33) 420i: 7 hp (5 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMW4 Series Convertible (F33)420i	270 Nm 199 lb-ft
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	320 Nm 236 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)420i	1,715 kg 3,781 lb
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	1,620 kg 3,571 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)420i	230 km/h 143 mph
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	223 km/h 139 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)420i	8.4 s
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	8.7 s

The biggest 0-100 km/h difference is between BMW 4 Series Convertible (F33) 420i and AUDI A5 Cabriolet (8F7) Facelift 2011 1.8 TFSI: 0.3 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)420i	6.2 L/100 km 37.9 mpg US 45.6 mpg UK
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	6.7 L/100 km 35.1 mpg US 42.2 mpg UK

The biggest fuel consumption difference is between BMW 4 Series Convertible (F33) 420i and AUDI A5 Cabriolet (8F7) Facelift 2011 1.8 TFSI: 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)420i	107 hp/t 80 kW/t 9.3 kg/hp
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	109 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
BMW4 Series Convertible (F33)420i	968 km 601 mi
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	940 km 584 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)420i	184 hp 137 kW	8.4 s	230 km/h 143 mph
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	177 hp 132 kW	8.7 s	223 km/h 139 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)420i

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	4,638 mm 182.6 in
Height	1,384 mm 54.5 in

AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI

Power	177 hp 132 kW
0-100 km/h	8.7 s
Top speed 223 km/h 139 mph

Doors/seats	2 doors 4 seats
Trunk	320 L 11.3 cu ft
Length	4,626 mm 182.1 in
Height	1,383 mm 54.4 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)420i

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

AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI

Power	177 hp 132 kW
0-100 km/h	8.7 s
Top speed 223 km/h 139 mph

6.7 L/100 km

35.1 mpg US

42.2 mpg UK

BMW 4 Series Convertible (F33) 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)420i	6.2 L/100 km 37.9 mpg US 45.6 mpg UK	8.4 s
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	6.7 L/100 km 35.1 mpg US 42.2 mpg UK	8.7 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
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
BMW4 Series Convertible (F33)420i	107 hp/t 80 kW/t 9.3 kg/hp	6.2 L/100 km 37.9 mpg US 45.6 mpg UK
AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI	109 hp/t 81 kW/t 9.2 kg/hp	6.7 L/100 km 35.1 mpg US 42.2 mpg UK

Detailed score breakdown

Vehicle

BMW4 Series Convertible (F33)420i

AUDIA5 Cabriolet (8F7)Facelift 20111.8 TFSI

Power

184 hp

137 kW

177 hp

132 kW

Torque

270 Nm

199 lb-ft

320 Nm

236 lb-ft

Acceleration

8.4 s

8.7 s

Top speed

230 km/h

143 mph

223 km/h

139 mph

Lightness

1,715 kg

3,781 lb

1,620 kg

3,571 lb

Fuel consumption

6.2 L/100 km

37.9 mpg US

45.6 mpg UK

6.7 L/100 km

35.1 mpg US

42.2 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	320 L 11.3 cu ft
Length	4,626 mm 182.1 in
Height	1,383 mm 54.4 in

Range score

968 km

601 mi

940 km

584 mi

CO2 score

144 g/km

154 g/km

Trunk score

370 L

13.1 cu ft

320 L

11.3 cu ft

Power-to-weight score

107 hp/t

80 kW/t

9.3 kg/hp

109 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	BMW 4 Series Convertible (F33) 420i	AUDI A5 Cabriolet (8F7) Facelift 2011 1.8 TFSI
Consumption	6.2 L/100 km37.9 mpg US45.6 mpg UK	6.7 L/100 km35.1 mpg US42.2 mpg UK
Cost / 100 km	10.85 LC100 km	11.73 LC100 km
Cost / 100 mi	17.46 LC100 mi	18.87 LC100 mi
Annual fuel used	930 L246 US gal205 UK gal	1,005 L265 US gal221 UK gal
Annual fuel cost	1,628 LC/year	1,759 LC/year