Car comparison

Aston Martin DB9 Coupe · Facelift 2012 6.0 V12vsDavid Brown Speedback GT 5.0 V8

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

New comparison

Aston Martin DB9 Coupe · Facelift 2012

6.0 V12

517 hp5935 ccGasolineRWDAutomaticNaturally aspiratedCoupe2012-2015

David Brown Speedback GT

5.0 V8

510 hp5000 ccGasolineRWDAutomaticTwin-turboCoupe2014-2017

Comparison overview

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

Aston Martin DB9 Coupe Facelift 2012 6.0 V12

Quickest 0-100 km/h
4.6 s
Fastest top speed
295 km/h
183 mph
Most powerful
517 hp
386 kW
Lightest
1,785 kg
3,935 lb
Best power-to-weight
290 hp/t
216 kW/t
3.5 kg/hp
Best overall score
70/100
Best performance score
85/100
Best practicality score
39/100

David Brown Speedback GT 5.0 V8

Highest torque
625 Nm
461 lb-ft
Lowest combined fuel consumption
12.3 L/100 km
19.1 mpg US
23.0 mpg UK
Lowest city consumption
18.9 L/100 km
12.4 mpg US
14.9 mpg UK
Lowest highway consumption
8.6 L/100 km
27.4 mpg US
32.8 mpg UK
Lowest CO2 emissions
292 g/km
Best estimated range
577 km
359 mi
Best economy score
74/100

Specification comparison

Specification comparison
Model	Aston MartinDB9 CoupeFacelift 20126.0 V12	David BrownSpeedback GT5.0 V8
Power	517hp386kW	510hp380kW
Torque	620Nm457lb-ft	625Nm461lb-ft
Curb weight	1,785kg3,935lb	1,920kg4,233lb
Gross weight	-	2,129kg4,694lb
Top speed	295 km/h 183 mph	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Calculated
To 99% top speed	67.2s99% target: 292 km/h / 181 mph Calculated	61.8s99% target: 262 km/h / 163 mph Calculated
0-100 km/h	4.6s	4.8s
0-200 km/h	14.1s Calculated	16.3s Calculated
0-60 mph	4.4s Calculated	4.6s Calculated
Fuel consumption	14.3L/100 km16.4mpg US19.8mpg UK	12.3L/100 km19.1mpg US23.0mpg UK
Fuel consumption city	21.6L/100 km10.9mpg US13.1mpg UK	18.9L/100 km12.4mpg US14.9mpg UK
Fuel consumption highway	10L/100 km23.5mpg US28.2mpg UK	8.6L/100 km27.4mpg US32.8mpg UK
Quarter mile	12.6s Calculated	12.9s Calculated
Power-to-weight	290hp/t216kW/t131hp/1000 lb Calculated	266hp/t198kW/t120hp/1000 lb Calculated
Torque-to-weight	347Nm/t232lb-ft/ton Calculated	326Nm/t218lb-ft/ton Calculated
Estimated range	545km339mi Calculated	577km359mi Calculated
Displacement	5,935cc362cu in	5,000cc305cu in
Length	4,720mm186in	4,760mm187in
Width	2,061mm81in	1,860mm73in
Height	1,282mm50in	1,350mm53in
Wheelbase	2,740mm108in	2,750mm108in
Trunk volume	-	243L
Max trunk volume	-	502L
Doors	2	2
Seats	2	2
Fuel tank	78L	71L
CO2 emissions	333g/km	292g/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.

Aston Martin DB9 Coupe Facelift 2012 6.0 V12David Brown Speedback GT 5.0 V8PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Aston MartinDB9 CoupeFacelift 20126.0 V12	6,500 rpm	5,500 rpm	6,750 rpm
David BrownSpeedback GT5.0 V8	6,000-6,500 rpm	2,500-5,000 rpm	6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Aston MartinDB9 CoupeFacelift 20126.0 V12	David BrownSpeedback GT5.0 V8
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.4 s	4.6 s
0-100 km/h 0-62 mph	4.6 s	4.8 s
0-200 km/h 0-124 mph	14.1 s	16.3 s
Top speed	295 km/h 183 mph	Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph Likely limited
	Drag race simulation
60 ft 18 m	2.2 s	2.2 s
330 ft 101 m	5.6 s	5.6 s
1/8 mile 201 m	8.3 s	8.5 s
1000 ft 305 m	10.6 s	10.9 s
1/4 mile 402 m	12.6 s	12.9 s
Trap speed 1/4 mile 402 m	189 km/h 117 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 CoupeFacelift 20126.0 V12	517 hp 386 kW
David BrownSpeedback GT5.0 V8	510 hp 380 kW

Aston Martin DB9 Coupe Facelift 2012 6.0 V12 has 7 hp more than David Brown Speedback GT 5.0 V8.

The biggest power difference is between David Brown Speedback GT 5.0 V8 and Aston Martin DB9 Coupe Facelift 2012 6.0 V12: 7 hp (5 kW).

Torque comparison

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

Chart data table
Vehicle	Value
Aston MartinDB9 CoupeFacelift 20126.0 V12	620 Nm 457 lb-ft
David BrownSpeedback GT5.0 V8	625 Nm 461 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Aston MartinDB9 CoupeFacelift 20126.0 V12	1,785 kg 3,935 lb
David BrownSpeedback GT5.0 V8	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
Aston MartinDB9 CoupeFacelift 20126.0 V12	295 km/h 183 mph
David BrownSpeedback GT5.0 V8	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 CoupeFacelift 20126.0 V12	4.6 s
David BrownSpeedback GT5.0 V8	4.8 s

The biggest 0-100 km/h difference is between Aston Martin DB9 Coupe Facelift 2012 6.0 V12 and David Brown Speedback GT 5.0 V8: 0.2 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
Aston MartinDB9 CoupeFacelift 20126.0 V12	14.3 L/100 km 16.4 mpg US 19.8 mpg UK
David BrownSpeedback GT5.0 V8	12.3 L/100 km 19.1 mpg US 23.0 mpg UK

The biggest fuel consumption difference is between David Brown Speedback GT 5.0 V8 and Aston Martin DB9 Coupe Facelift 2012 6.0 V12: 2.0 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
Aston MartinDB9 CoupeFacelift 20126.0 V12	290 hp/t 216 kW/t 3.5 kg/hp
David BrownSpeedback GT5.0 V8	266 hp/t 198 kW/t 3.8 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
Aston MartinDB9 CoupeFacelift 20126.0 V12	545 km 339 mi
David BrownSpeedback GT5.0 V8	577 km 359 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Aston MartinDB9 CoupeFacelift 20126.0 V12	517 hp 386 kW	4.6 s	295 km/h 183 mph
David BrownSpeedback GT5.0 V8	510 hp 380 kW	4.8 s	Unrestricted 265 km/h165 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

Aston MartinDB9 CoupeFacelift 20126.0 V12

Power	517 hp 386 kW
0-100 km/h	4.6 s
Top speed 295 km/h 183 mph

Doors/seats	2 doors 2 seats
Trunk	-
Length	4,720 mm 185.8 in
Height	1,282 mm 50.5 in

David BrownSpeedback GT5.0 V8

Power	510 hp 380 kW
0-100 km/h	4.8 s
Top speed Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 2 seats
Trunk	243 L 8.6 cu ft
Length	4,760 mm 187.4 in
Height	1,350 mm 53.1 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

Aston MartinDB9 CoupeFacelift 20126.0 V12

Power	517 hp 386 kW
0-100 km/h	4.6 s
Top speed 295 km/h 183 mph

14.3 L/100 km

16.4 mpg US

19.8 mpg UK

David BrownSpeedback GT5.0 V8

Power	510 hp 380 kW
0-100 km/h	4.8 s
Top speed Unrestricted 265 km/h165 mph Restricted 250 km/h155 mph

12.3 L/100 km

19.1 mpg US

23.0 mpg UK

David Brown Speedback GT 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
Aston MartinDB9 CoupeFacelift 20126.0 V12	14.3 L/100 km 16.4 mpg US 19.8 mpg UK	4.6 s
David BrownSpeedback GT5.0 V8	12.3 L/100 km 19.1 mpg US 23.0 mpg UK	4.8 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
Aston MartinDB9 CoupeFacelift 20126.0 V12	290 hp/t 216 kW/t 3.5 kg/hp	14.3 L/100 km 16.4 mpg US 19.8 mpg UK
David BrownSpeedback GT5.0 V8	266 hp/t 198 kW/t 3.8 kg/hp	12.3 L/100 km 19.1 mpg US 23.0 mpg UK

Detailed score breakdown

Vehicle

Aston MartinDB9 CoupeFacelift 20126.0 V12

David BrownSpeedback GT5.0 V8

Power

517 hp

386 kW

510 hp

380 kW

Torque

620 Nm

457 lb-ft

625 Nm

461 lb-ft

Acceleration

4.6 s

4.8 s

Top speed

295 km/h

183 mph

Unrestricted

265 km/h165 mph

Restricted

250 km/h155 mph

Lightness

1,785 kg

3,935 lb

1,920 kg

4,233 lb

Fuel consumption

14.3 L/100 km

16.4 mpg US

19.8 mpg UK

12.3 L/100 km

19.1 mpg US

23.0 mpg UK

Practicality

Doors/seats	2 doors 2 seats
Trunk	-
Length	4,720 mm 185.8 in
Height	1,282 mm 50.5 in

Doors/seats	2 doors 2 seats
Trunk	243 L 8.6 cu ft
Length	4,760 mm 187.4 in
Height	1,350 mm 53.1 in

Range score

545 km

339 mi

577 km

359 mi

CO2 score

333 g/km

292 g/km

Trunk score

243 L

8.6 cu ft

Power-to-weight score

290 hp/t

216 kW/t

3.5 kg/hp

266 hp/t

198 kW/t

3.8 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	Aston Martin DB9 Coupe Facelift 2012 6.0 V12	David Brown Speedback GT 5.0 V8
Consumption	14.3 L/100 km16.4 mpg US19.8 mpg UK	12.3 L/100 km19.1 mpg US23 mpg UK
Cost / 100 km	25.03 LC100 km	21.53 LC100 km
Cost / 100 mi	40.27 LC100 mi	34.64 LC100 mi
Annual fuel used	2,145 L567 US gal472 UK gal	1,845 L487 US gal406 UK gal
Annual fuel cost	3,754 LC/year	3,229 LC/year