Car comparison

Aston Martin DB9 Coupe 6.0 i V12 48VvsCadillac XLR V 4.4 i V8 32V

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

New comparison

Aston Martin DB9 Coupe

6.0 i V12 48V

456 hp5935 ccGasolineRWDAutomaticNaturally aspiratedCoupe2004-2012

Cadillac XLR

V 4.4 i V8 32V

449 hp4371 ccGasolineRWDAutomaticSuperchargedCoupe2006-2009

Comparison overview

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

Aston Martin DB9 Coupe 6.0 i V12 48V

Fastest top speed
310 km/h
193 mph Unrestricted
300 km/h
186 mph Restricted
Most powerful
456 hp
340 kW
Highest torque
570 Nm
420 lb-ft
Largest trunk
175 L
Best overall score
71/100
Best performance score
81/100
Best economy score
0/100
Best practicality score
51/100

Cadillac XLR V 4.4 i V8 32V

Quickest 0-100 km/h
4.9 s
Lightest
1,730 kg
3,814 lb
Best power-to-weight
260 hp/t
194 kW/t
3.9 kg/hp
Lowest city consumption
21.1 L/100 km
11.1 mpg US
13.4 mpg UK
Lowest highway consumption
11.3 L/100 km
20.8 mpg US
25.0 mpg UK

Specification comparison

Specification comparison
Model	Aston MartinDB9 Coupe6.0 i V12 48V	CadillacXLRV 4.4 i V8 32V
Power	456hp340kW	449hp335kW
Torque	570Nm420lb-ft	561Nm414lb-ft
Curb weight	1,760kg3,880lb	1,730kg3,814lb
Top speed	Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph Calculated	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	82.8s99% target: 307 km/h / 191 mph Calculated	62.3s99% target: 262 km/h / 163 mph Calculated
0-100 km/h	5.1s	4.9s
0-200 km/h	15.4s Calculated	16.5s Calculated
0-60 mph	4.9s Calculated	4.7s Calculated
Fuel consumption city	24L/100 km9.8mpg US11.8mpg UK	21.1L/100 km11.1mpg US13.4mpg UK
Fuel consumption highway	12L/100 km19.6mpg US23.5mpg UK	11.3L/100 km20.8mpg US25.0mpg UK
Quarter mile	13.1s Calculated	13.0s Calculated
Power-to-weight	259hp/t193kW/t118hp/1000 lb Calculated	260hp/t194kW/t118hp/1000 lb Calculated
Torque-to-weight	324Nm/t217lb-ft/ton Calculated	324Nm/t217lb-ft/ton Calculated
Displacement	5,935cc362cu in	4,371cc267cu in
Length	4,697mm185in	4,513mm178in
Width	1,875mm74in	1,836mm72in
Height	1,318mm52in	1,279mm50in
Wheelbase	2,740mm108in	2,685mm106in
Front track	1,568mm62in	1,565mm62in
Rear track	1,562mm61in	1,578mm62in
Trunk volume	-	125L
Max trunk volume	175L	328L
Doors	2	2
Seats	4	2
Fuel tank	85L	68L

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.

Aston Martin DB9 Coupe 6.0 i V12 48VCadillac XLR V 4.4 i V8 32VPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Aston MartinDB9 Coupe6.0 i V12 48V	6,000 rpm	5,000 rpm	6,250 rpm
CadillacXLRV 4.4 i V8 32V	6,400 rpm	3,600 rpm	6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Aston MartinDB9 Coupe6.0 i V12 48V	CadillacXLRV 4.4 i V8 32V
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.9 s	4.7 s
0-100 km/h 0-62 mph	5.1 s	4.9 s
0-200 km/h 0-124 mph	15.4 s	16.5 s
Top speed	Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph Likely limited	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.3 s	2.2 s
330 ft 101 m	5.8 s	5.7 s
1/8 mile 201 m	8.7 s	8.5 s
1000 ft 305 m	11.1 s	10.9 s
1/4 mile 402 m	13.1 s	13.0 s
Trap speed 1/4 mile 402 m	183 km/h 114 mph	180 km/h 112 mph

Power comparison

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

Chart data table
Vehicle	Value
Aston MartinDB9 Coupe6.0 i V12 48V	456 hp 340 kW
CadillacXLRV 4.4 i V8 32V	449 hp 335 kW

Aston Martin DB9 Coupe 6.0 i V12 48V has 7 hp more than Cadillac XLR V 4.4 i V8 32V.

The biggest power difference is between Cadillac XLR V 4.4 i V8 32V and Aston Martin DB9 Coupe 6.0 i V12 48V: 7 hp (5 kW).

Torque comparison

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

Chart data table
Vehicle	Value
Aston MartinDB9 Coupe6.0 i V12 48V	570 Nm 420 lb-ft
CadillacXLRV 4.4 i V8 32V	561 Nm 414 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Aston MartinDB9 Coupe6.0 i V12 48V	1,760 kg 3,880 lb
CadillacXLRV 4.4 i V8 32V	1,730 kg 3,814 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
Aston MartinDB9 Coupe6.0 i V12 48V	Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph
CadillacXLRV 4.4 i V8 32V	Unrestricted 265 km/h165 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
Aston MartinDB9 Coupe6.0 i V12 48V	5.1 s
CadillacXLRV 4.4 i V8 32V	4.9 s

Although Aston Martin DB9 Coupe 6.0 i V12 48V has more power, Cadillac XLR V 4.4 i V8 32V is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Cadillac XLR V 4.4 i V8 32V and Aston Martin DB9 Coupe 6.0 i V12 48V: 0.2 s.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
Aston MartinDB9 Coupe6.0 i V12 48V	259 hp/t 193 kW/t 3.9 kg/hp
CadillacXLRV 4.4 i V8 32V	260 hp/t 194 kW/t 3.9 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Aston MartinDB9 Coupe6.0 i V12 48V	456 hp 340 kW	5.1 s	Unrestricted 310 km/h193 mph Restricted 300 km/h186 mph
CadillacXLRV 4.4 i V8 32V	449 hp 335 kW	4.9 s	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph