Car comparison

BMW 6 Series Convertible (E64) · Facelift 2007 650ivsJaguar XK Convertible (X150) · Facelift 2009 5.0 V8

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

New comparison

BMW 6 Series Convertible (E64) · Facelift 2007

650i

367 hp4799 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2007-2010

Jaguar XK Convertible (X150) · Facelift 2009

5.0 V8

385 hp5000 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible2009-2011

Comparison overview

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

BMW 6 Series Convertible (E64) Facelift 2007 650i

Quickest 0-100 km/h
5.6 s
Fastest top speed
260 km/h
162 mph Unrestricted
250 km/h
155 mph Restricted
Lowest combined fuel consumption
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
Lowest city consumption
16.5 L/100 km
14.3 mpg US
17.1 mpg UK
Lowest highway consumption
7.7 L/100 km
30.5 mpg US
36.7 mpg UK
Best estimated range
642 km
399 mi
Largest trunk
300 L
Best overall score
61/100
Best economy score
78/100
Best practicality score
45/100

Jaguar XK Convertible (X150) Facelift 2009 5.0 V8

Most powerful
385 hp
287 kW
Highest torque
515 Nm
380 lb-ft
Lightest
1,696 kg
3,739 lb
Best power-to-weight
227 hp/t
169 kW/t
4.4 kg/hp
Best performance score
71/100

Specification comparison

Specification comparison
Model	BMW6 Series Convertible (E64)Facelift 2007650i	JaguarXK Convertible (X150)Facelift 20095.0 V8
Power	367hp274kW	385hp287kW
Torque	490Nm361lb-ft	515Nm380lb-ft
Curb weight	1,860kg4,101lb	1,696kg3,739lb
Gross weight	2,260kg4,982lb	2,120kg4,674lb
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	77.8s99% target: 257 km/h / 160 mph Calculated	73.2s99% target: 257 km/h / 160 mph Calculated
0-100 km/h	5.6s	5.6s
0-200 km/h	20.4s Calculated	19.8s Calculated
0-60 mph	5.3s Calculated	5.3s Calculated
Fuel consumption	10.9L/100 km21.6mpg US25.9mpg UK	11.2L/100 km21mpg US25.2mpg UK
Fuel consumption city	16.5L/100 km14.3mpg US17.1mpg UK	17.1L/100 km13.8mpg US16.5mpg UK
Fuel consumption highway	7.7L/100 km30.5mpg US36.7mpg UK	8L/100 km29.4mpg US35.3mpg UK
Quarter mile	13.7s Calculated	13.7s Calculated
Power-to-weight	197hp/t147kW/t89hp/1000 lb Calculated	227hp/t169kW/t103hp/1000 lb Calculated
Torque-to-weight	263Nm/t176lb-ft/ton Calculated	304Nm/t203lb-ft/ton Calculated
Estimated range	642km399mi Calculated	630km392mi Calculated
Displacement	4,799cc293cu in	5,000cc305cu in
Length	4,820mm190in	4,794mm189in
Width	1,855mm73in	1,892mm74in
Height	1,374mm54in	1,329mm52in
Wheelbase	2,780mm109in	2,752mm108in
Front track	1,558mm61in	-
Rear track	1,596mm63in	-
Ground clearance	-	100mm4in
Trunk volume	300L	200L
Max trunk volume	350L	313L
Doors	2	2
Seats	4	4
Fuel tank	70L	71L
CO2 emissions	258g/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 (E64) Facelift 2007 650iJaguar XK Convertible (X150) Facelift 2009 5.0 V8PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW6 Series Convertible (E64)Facelift 2007650i	6,300 rpm	3,400 rpm	6,550 rpm
JaguarXK Convertible (X150)Facelift 20095.0 V8	6,500 rpm	3,500 rpm	6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW6 Series Convertible (E64)Facelift 2007650i	JaguarXK Convertible (X150)Facelift 20095.0 V8
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.3 s	5.3 s
0-100 km/h 0-62 mph	5.6 s	5.6 s
0-200 km/h 0-124 mph	20.4 s	19.8 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 Limited
	Drag race simulation
60 ft 18 m	2.3 s	2.3 s
330 ft 101 m	6.0 s	6.0 s
1/8 mile 201 m	9.0 s	9.0 s
1000 ft 305 m	11.6 s	11.6 s
1/4 mile 402 m	13.7 s	13.7 s
Trap speed 1/4 mile 402 m	169 km/h 105 mph	170 km/h 106 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)Facelift 2007650i	367 hp 274 kW
JaguarXK Convertible (X150)Facelift 20095.0 V8	385 hp 287 kW

Jaguar XK Convertible (X150) Facelift 2009 5.0 V8 has 18 hp more than BMW 6 Series Convertible (E64) Facelift 2007 650i.

The biggest power difference is between BMW 6 Series Convertible (E64) Facelift 2007 650i and Jaguar XK Convertible (X150) Facelift 2009 5.0 V8: 18 hp (13 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)Facelift 2007650i	490 Nm 361 lb-ft
JaguarXK Convertible (X150)Facelift 20095.0 V8	515 Nm 380 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)Facelift 2007650i	1,860 kg 4,101 lb
JaguarXK Convertible (X150)Facelift 20095.0 V8	1,696 kg 3,739 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 (E64)Facelift 2007650i	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
JaguarXK Convertible (X150)Facelift 20095.0 V8	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 (E64)Facelift 2007650i	5.6 s
JaguarXK Convertible (X150)Facelift 20095.0 V8	5.6 s

Although Jaguar XK Convertible (X150) Facelift 2009 5.0 V8 has more power, BMW 6 Series Convertible (E64) Facelift 2007 650i is quicker from 0-100 km/h.

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 (E64)Facelift 2007650i	10.9 L/100 km 21.6 mpg US 25.9 mpg UK
JaguarXK Convertible (X150)Facelift 20095.0 V8	11.2 L/100 km 21.0 mpg US 25.2 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
BMW6 Series Convertible (E64)Facelift 2007650i	197 hp/t 147 kW/t 5.1 kg/hp
JaguarXK Convertible (X150)Facelift 20095.0 V8	227 hp/t 169 kW/t 4.4 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
BMW6 Series Convertible (E64)Facelift 2007650i	642 km 399 mi
JaguarXK Convertible (X150)Facelift 20095.0 V8	630 km 392 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMW6 Series Convertible (E64)Facelift 2007650i	367 hp 274 kW	5.6 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
JaguarXK Convertible (X150)Facelift 20095.0 V8	385 hp 287 kW	5.6 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 (E64)Facelift 2007650i

Power	367 hp 274 kW
0-100 km/h	5.6 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	4,820 mm 189.8 in
Height	1,374 mm 54.1 in

JaguarXK Convertible (X150)Facelift 20095.0 V8

Power	385 hp 287 kW
0-100 km/h	5.6 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	200 L 7.1 cu ft
Length	4,794 mm 188.7 in
Height	1,329 mm 52.3 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 (E64)Facelift 2007650i

Power	367 hp 274 kW
0-100 km/h	5.6 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

10.9 L/100 km

21.6 mpg US

25.9 mpg UK

JaguarXK Convertible (X150)Facelift 20095.0 V8

Power	385 hp 287 kW
0-100 km/h	5.6 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

11.2 L/100 km

21.0 mpg US

25.2 mpg UK

Jaguar XK Convertible (X150) Facelift 2009 5.0 V8 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 (E64)Facelift 2007650i	10.9 L/100 km 21.6 mpg US 25.9 mpg UK	5.6 s
JaguarXK Convertible (X150)Facelift 20095.0 V8	11.2 L/100 km 21.0 mpg US 25.2 mpg UK	5.6 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 (E64)Facelift 2007650i	197 hp/t 147 kW/t 5.1 kg/hp	10.9 L/100 km 21.6 mpg US 25.9 mpg UK
JaguarXK Convertible (X150)Facelift 20095.0 V8	227 hp/t 169 kW/t 4.4 kg/hp	11.2 L/100 km 21.0 mpg US 25.2 mpg UK

Detailed score breakdown

Vehicle

BMW6 Series Convertible (E64)Facelift 2007650i

JaguarXK Convertible (X150)Facelift 20095.0 V8

Power

367 hp

274 kW

385 hp

287 kW

Torque

490 Nm

361 lb-ft

515 Nm

380 lb-ft

Acceleration

5.6 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

Lightness

1,860 kg

4,101 lb

1,696 kg

3,739 lb

Fuel consumption

10.9 L/100 km

21.6 mpg US

25.9 mpg UK

11.2 L/100 km

21.0 mpg US

25.2 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	300 L 10.6 cu ft
Length	4,820 mm 189.8 in
Height	1,374 mm 54.1 in

Doors/seats	2 doors 4 seats
Trunk	200 L 7.1 cu ft
Length	4,794 mm 188.7 in
Height	1,329 mm 52.3 in

Range score

642 km

399 mi

630 km

392 mi

CO2 score

258 g/km

Trunk score

300 L

10.6 cu ft

200 L

7.1 cu ft

Power-to-weight score

197 hp/t

147 kW/t

5.1 kg/hp

227 hp/t

169 kW/t

4.4 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 (E64) Facelift 2007 650i	Jaguar XK Convertible (X150) Facelift 2009 5.0 V8
Consumption	10.9 L/100 km21.6 mpg US25.9 mpg UK	11.2 L/100 km21 mpg US25.2 mpg UK
Cost / 100 km	19.08 LC100 km	19.60 LC100 km
Cost / 100 mi	30.70 LC100 mi	31.54 LC100 mi
Annual fuel used	1,635 L432 US gal360 UK gal	1,680 L444 US gal370 UK gal
Annual fuel cost	2,861 LC/year	2,940 LC/year