Car comparison

BMW 6 Series Convertible (F12) 650ivsAUDI RS5 Cabriolet (8T) · Facelift 2013 4.2 FSI

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

New comparison

BMW 6 Series Convertible (F12)

650i

450 hp4395 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2012-2015

AUDI RS5 Cabriolet (8T) · Facelift 2013

4.2 FSI

450 hp4163 ccGasolineAWDAutomaticNaturally aspiratedCabriolet / convertible2013-2015

Comparison overview

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

BMW 6 Series Convertible (F12) 650i

Quickest 0-100 km/h
4.5 s
Fastest top speed
260 km/h
162 mph Unrestricted
250 km/h
155 mph Restricted
Most powerful
450 hp
336 kW
Highest torque
650 Nm
479 lb-ft
Lowest combined fuel consumption
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Lowest city consumption
13.3 L/100 km
17.7 mpg US
21.2 mpg UK
Lowest highway consumption
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
Lowest CO2 emissions
221 g/km
Best estimated range
737 km
458 mi
Best overall score
68/100
Best performance score
79/100
Best economy score
81/100

AUDI RS5 Cabriolet (8T) Facelift 2013 4.2 FSI

Lightest
1,920 kg
4,233 lb
Best power-to-weight
234 hp/t
175 kW/t
4.3 kg/hp
Largest trunk
320 L
Best practicality score
46/100

Specification comparison

Specification comparison
Model	BMW6 Series Convertible (F12)650i	AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI
Power	450hp336kW	450hp336kW
Torque	650Nm479lb-ft	430Nm317lb-ft
Curb weight	1,980kg4,365lb	1,920kg4,233lb
Gross weight	2,480kg5,467lb	2,420kg5,335lb
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	61.6s99% target: 257 km/h / 160 mph Calculated	65.4s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	4.5s	4.9s
0-200 km/h	16.3s Calculated	17.5s Calculated
0-60 mph	4.3s Calculated	4.7s Calculated
Fuel consumption	9.5L/100 km24.8mpg US29.7mpg UK	10.7L/100 km22mpg US26.4mpg UK
Fuel consumption city	13.3L/100 km17.7mpg US21.2mpg UK	14.6L/100 km16.1mpg US19.3mpg UK
Fuel consumption highway	7.3L/100 km32.2mpg US38.7mpg UK	8.5L/100 km27.7mpg US33.2mpg UK
Quarter mile	12.7s Calculated	13.0s Calculated
Power-to-weight	227hp/t169kW/t103hp/1000 lb Calculated	234hp/t175kW/t106hp/1000 lb Calculated
Torque-to-weight	328Nm/t220lb-ft/ton Calculated	224Nm/t150lb-ft/ton Calculated
Estimated range	737km458mi Calculated	570km354mi Calculated
Displacement	4,395cc268cu in	4,163cc254cu in
Length	4,894mm193in	4,649mm183in
Width	1,894mm75in	1,860mm73in
Height	1,365mm54in	1,380mm54in
Wheelbase	2,855mm112in	2,751mm108in
Front track	1,600mm63in	1,586mm62in
Rear track	1,665mm66in	1,582mm62in
Ground clearance	123mm5in	-
Trunk volume	300L	320L
Max trunk volume	350L	750L
Doors	2	2
Seats	4	4
Fuel tank	70L	61L
CO2 emissions	221g/km	249g/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 6 Series Convertible (F12) 650iAUDI RS5 Cabriolet (8T) Facelift 2013 4.2 FSIPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW6 Series Convertible (F12)650i	5,500 rpm	2,000-4,500 rpm	5,750 rpm
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	8,250 rpm	4,000-6,000 rpm	8,500 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW6 Series Convertible (F12)650i	AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.3 s	4.7 s
0-100 km/h 0-62 mph	4.5 s	4.9 s
0-200 km/h 0-124 mph	16.3 s	17.5 s
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.1 s	2.1 s
330 ft 101 m	5.5 s	5.7 s
1/8 mile 201 m	8.2 s	8.5 s
1000 ft 305 m	10.6 s	11.0 s
1/4 mile 402 m	12.7 s	13.0 s
Trap speed 1/4 mile 402 m	180 km/h 112 mph	176 km/h 110 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (F12)650i	450 hp 336 kW
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	450 hp 336 kW

Torque comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (F12)650i	650 Nm 479 lb-ft
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	430 Nm 317 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (F12)650i	1,980 kg 4,365 lb
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	1,920 kg 4,233 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
BMW6 Series Convertible (F12)650i	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (F12)650i	4.5 s
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	4.9 s

The biggest 0-100 km/h difference is between BMW 6 Series Convertible (F12) 650i and AUDI RS5 Cabriolet (8T) Facelift 2013 4.2 FSI: 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
BMW6 Series Convertible (F12)650i	9.5 L/100 km 24.8 mpg US 29.7 mpg UK
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	10.7 L/100 km 22.0 mpg US 26.4 mpg UK

The biggest fuel consumption difference is between BMW 6 Series Convertible (F12) 650i and AUDI RS5 Cabriolet (8T) Facelift 2013 4.2 FSI: 1.2 L/100 km.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (F12)650i	227 hp/t 169 kW/t 4.4 kg/hp
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	234 hp/t 175 kW/t 4.3 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (F12)650i	737 km 458 mi
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	570 km 354 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMW6 Series Convertible (F12)650i	450 hp 336 kW	4.5 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	450 hp 336 kW	4.9 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 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

BMW6 Series Convertible (F12)650i

Power	450 hp 336 kW
0-100 km/h	4.5 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	300 L 10.6 cu ft
Length	4,894 mm 192.7 in
Height	1,365 mm 53.7 in

AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI

Power	450 hp 336 kW
0-100 km/h	4.9 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	320 L 11.3 cu ft
Length	4,649 mm 183.0 in
Height	1,380 mm 54.3 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

BMW6 Series Convertible (F12)650i

Power	450 hp 336 kW
0-100 km/h	4.5 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

9.5 L/100 km

24.8 mpg US

29.7 mpg UK

AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI

Power	450 hp 336 kW
0-100 km/h	4.9 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

10.7 L/100 km

22.0 mpg US

26.4 mpg UK

BMW 6 Series Convertible (F12) 650i 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
BMW6 Series Convertible (F12)650i	9.5 L/100 km 24.8 mpg US 29.7 mpg UK	4.5 s
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	10.7 L/100 km 22.0 mpg US 26.4 mpg UK	4.9 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
BMW6 Series Convertible (F12)650i	227 hp/t 169 kW/t 4.4 kg/hp	9.5 L/100 km 24.8 mpg US 29.7 mpg UK
AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI	234 hp/t 175 kW/t 4.3 kg/hp	10.7 L/100 km 22.0 mpg US 26.4 mpg UK

Detailed score breakdown

Vehicle

BMW6 Series Convertible (F12)650i

AUDIRS5 Cabriolet (8T)Facelift 20134.2 FSI

Power

450 hp

336 kW

450 hp

336 kW

Torque

650 Nm

479 lb-ft

430 Nm

317 lb-ft

Acceleration

4.5 s

4.9 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

1,980 kg

4,365 lb

1,920 kg

4,233 lb

Fuel consumption

9.5 L/100 km

24.8 mpg US

29.7 mpg UK

10.7 L/100 km

22.0 mpg US

26.4 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	300 L 10.6 cu ft
Length	4,894 mm 192.7 in
Height	1,365 mm 53.7 in

Doors/seats	2 doors 4 seats
Trunk	320 L 11.3 cu ft
Length	4,649 mm 183.0 in
Height	1,380 mm 54.3 in

Range score

737 km

458 mi

570 km

354 mi

CO2 score

221 g/km

249 g/km

Trunk score

300 L

10.6 cu ft

320 L

11.3 cu ft

Power-to-weight score

227 hp/t

169 kW/t

4.4 kg/hp

234 hp/t

175 kW/t

4.3 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 6 Series Convertible (F12) 650i	AUDI RS5 Cabriolet (8T) Facelift 2013 4.2 FSI
Consumption	9.5 L/100 km24.8 mpg US29.7 mpg UK	10.7 L/100 km22 mpg US26.4 mpg UK
Cost / 100 km	16.63 LC100 km	18.72 LC100 km
Cost / 100 mi	26.76 LC100 mi	30.13 LC100 mi
Annual fuel used	1,425 L376 US gal313 UK gal	1,605 L424 US gal353 UK gal
Annual fuel cost	2,494 LC/year	2,809 LC/year