Car comparison

Aston Martin DBX 4.0 V8vsAlfa Romeo Stelvio (949) 2.9T Bi-Turbo V6

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

New comparison

Aston Martin DBX

4.0 V8

550 hp3982 ccGasolineAWDAutomaticTwin-turboSUV2020-2024

Alfa Romeo Stelvio (949)

2.9T Bi-Turbo V6

510 hp2891 ccGasolineAWDAutomaticTwin-turboSUV2018-2022

Comparison overview

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

Alfa Romeo Stelvio (949) 2.9T Bi-Turbo V6

Quickest 0-100 km/h
3.8 s
Lightest
1,830 kg
4,034 lb
Best power-to-weight
279 hp/t
208 kW/t
3.6 kg/hp
Lowest CO2 emissions
227 g/km
Best performance score
85/100
Best economy score
81/100

Aston Martin DBX 4.0 V8

Fastest top speed
291 km/h
181 mph
Most powerful
550 hp
410 kW
Highest torque
700 Nm
516 lb-ft
Best overall score
86/100
Best practicality score
90/100

Specification comparison

Specification comparison
Model	Aston MartinDBX4.0 V8	Alfa RomeoStelvio (949)2.9T Bi-Turbo V6
Power	550hp410kW	510hp380kW
Torque	700Nm516lb-ft	600Nm443lb-ft
Curb weight	2,245kg4,949lb	1,830kg4,034lb
Top speed	291 km/h 181 mph	283 km/h 176 mph
To 99% top speed	61.9s99% target: 288 km/h / 179 mph Calculated	44.9s99% target: 280 km/h / 174 mph Calculated
0-100 km/h	4.5s	3.8s
0-200 km/h	13.7s Calculated	11.2s Calculated
0-60 mph	4.3s Calculated	3.6s Calculated
Fuel consumption	-	9.8L/100 km24mpg US28.8mpg UK
Fuel consumption city	-	12.3L/100 km19.1mpg US23.0mpg UK
Fuel consumption highway	-	8.4L/100 km28mpg US33.6mpg UK
Quarter mile	12.4s Calculated	11.6s Calculated
Power-to-weight	245hp/t183kW/t111hp/1000 lb Calculated	279hp/t208kW/t126hp/1000 lb Calculated
Torque-to-weight	312Nm/t209lb-ft/ton Calculated	328Nm/t219lb-ft/ton Calculated
Estimated range	-	653km406mi Calculated
Displacement	3,982cc243cu in	2,891cc176cu in
Length	5,039mm198in	4,686mm184in
Width	1,998mm79in	1,903mm75in
Height	1,680mm66in	1,693mm67in
Wheelbase	3,060mm120in	2,818mm111in
Ground clearance	235mm9in	-
Trunk volume	632L	-
Doors	5	5
Seats	5	5
Fuel tank	85L	64L
CO2 emissions	269g/km	227g/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 DBX 4.0 V8Alfa Romeo Stelvio (949) 2.9T Bi-Turbo V6PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Aston MartinDBX4.0 V8	6,500 rpm	2,200-5,000 rpm	6,750 rpm
Alfa RomeoStelvio (949)2.9T Bi-Turbo V6	6,500 rpm	2,500 rpm	6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Aston MartinDBX4.0 V8	Alfa RomeoStelvio (949)2.9T Bi-Turbo V6
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.3 s	3.6 s
0-100 km/h 0-62 mph	4.5 s	3.8 s
0-200 km/h 0-124 mph	13.7 s	11.2 s
Top speed	291 km/h 181 mph	283 km/h 176 mph
	Drag race simulation
60 ft 18 m	2.2 s	2.0 s
330 ft 101 m	5.5 s	5.2 s
1/8 mile 201 m	8.2 s	7.7 s
1000 ft 305 m	10.5 s	9.8 s
1/4 mile 402 m	12.4 s	11.6 s
Trap speed 1/4 mile 402 m	191 km/h 118 mph	203 km/h 126 mph

Power comparison

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

Chart data table
Vehicle	Value
Aston MartinDBX4.0 V8	550 hp 410 kW
Alfa RomeoStelvio (949)2.9T Bi-Turbo V6	510 hp 380 kW

Aston Martin DBX 4.0 V8 has 40 hp more than Alfa Romeo Stelvio (949) 2.9T Bi-Turbo V6.

The biggest power difference is between Alfa Romeo Stelvio (949) 2.9T Bi-Turbo V6 and Aston Martin DBX 4.0 V8: 40 hp (30 kW).

Torque comparison

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

Chart data table
Vehicle	Value
Aston MartinDBX4.0 V8	700 Nm 516 lb-ft
Alfa RomeoStelvio (949)2.9T Bi-Turbo V6	600 Nm 443 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Aston MartinDBX4.0 V8	2,245 kg 4,949 lb
Alfa RomeoStelvio (949)2.9T Bi-Turbo V6	1,830 kg 4,034 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 MartinDBX4.0 V8	291 km/h 181 mph
Alfa RomeoStelvio (949)2.9T Bi-Turbo V6	283 km/h 176 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
Aston MartinDBX4.0 V8	4.5 s
Alfa RomeoStelvio (949)2.9T Bi-Turbo V6	3.8 s

Although Aston Martin DBX 4.0 V8 has more power, Alfa Romeo Stelvio (949) 2.9T Bi-Turbo V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Alfa Romeo Stelvio (949) 2.9T Bi-Turbo V6 and Aston Martin DBX 4.0 V8: 0.7 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 MartinDBX4.0 V8	245 hp/t 183 kW/t 4.1 kg/hp
Alfa RomeoStelvio (949)2.9T Bi-Turbo V6	279 hp/t 208 kW/t 3.6 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Aston MartinDBX4.0 V8	550 hp 410 kW	4.5 s	291 km/h 181 mph
Alfa RomeoStelvio (949)2.9T Bi-Turbo V6	510 hp 380 kW	3.8 s	283 km/h 176 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 MartinDBX4.0 V8

Power	550 hp 410 kW
0-100 km/h	4.5 s
Top speed 291 km/h 181 mph

Doors/seats	5 doors 5 seats
Trunk	632 L 22.3 cu ft
Length	5,039 mm 198.4 in
Height	1,680 mm 66.1 in

Alfa RomeoStelvio (949)2.9T Bi-Turbo V6

Power	510 hp 380 kW
0-100 km/h	3.8 s
Top speed 283 km/h 176 mph

Doors/seats	5 doors 5 seats
Trunk	-
Length	4,686 mm 184.5 in
Height	1,693 mm 66.7 in

Detailed score breakdown

Vehicle

Aston MartinDBX4.0 V8

Alfa RomeoStelvio (949)2.9T Bi-Turbo V6

Power

550 hp

410 kW

510 hp

380 kW

Torque

700 Nm

516 lb-ft

600 Nm

443 lb-ft

Acceleration

4.5 s

3.8 s

Top speed

291 km/h

181 mph

283 km/h

176 mph

Lightness

2,245 kg

4,949 lb

1,830 kg

4,034 lb

Fuel consumption

9.8 L/100 km

24.0 mpg US

28.8 mpg UK

Practicality

Doors/seats	5 doors 5 seats
Trunk	632 L 22.3 cu ft
Length	5,039 mm 198.4 in
Height	1,680 mm 66.1 in

Doors/seats	5 doors 5 seats
Trunk	-
Length	4,686 mm 184.5 in
Height	1,693 mm 66.7 in

Range score

653 km

406 mi

CO2 score

269 g/km

227 g/km

Trunk score

632 L

22.3 cu ft

Power-to-weight score

245 hp/t

183 kW/t

4.1 kg/hp

279 hp/t

208 kW/t

3.6 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	Alfa Romeo Stelvio (949) 2.9T Bi-Turbo V6
Consumption	9.8 L/100 km24 mpg US28.8 mpg UK
Cost / 100 km	17.15 LC100 km
Cost / 100 mi	27.60 LC100 mi
Annual fuel used	1,470 L388 US gal323 UK gal
Annual fuel cost	2,573 LC/year