Car comparison

Porsche Boxster (981) Spyder 3.8vsAston Martin V8 Vantage Roadster · Facelift 2008 4.7 V8

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

New comparison

Porsche Boxster (981)

Spyder 3.8

375 hp3800 ccGasolineRWDManualNaturally aspiratedRoadster2015-2016

Aston Martin V8 Vantage Roadster · Facelift 2008

4.7 V8

426 hp4735 ccGasolineRWDAutomaticNaturally aspiratedRoadster2008-2016

Comparison overview

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

Porsche Boxster (981) Spyder 3.8

Quickest 0-100 km/h
4.5 s
Fastest top speed
300 km/h
186 mph Unrestricted
290 km/h
180 mph Restricted
Lightest
1,315 kg
2,899 lb
Best power-to-weight
285 hp/t
213 kW/t
3.5 kg/hp
Lowest combined fuel consumption
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
Lowest city consumption
14.2 L/100 km
16.6 mpg US
19.9 mpg UK
Lowest highway consumption
7.5 L/100 km
31.4 mpg US
37.7 mpg UK
Largest trunk
280 L
Best overall score
62/100
Best economy score
80/100
Best practicality score
31/100

Aston Martin V8 Vantage Roadster Facelift 2008 4.7 V8

Most powerful
426 hp
318 kW
Highest torque
470 Nm
347 lb-ft
Best estimated range
625 km
388 mi
Best performance score
78/100

Specification comparison

Specification comparison
Model	PorscheBoxster (981)Spyder 3.8	Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8
Power	375hp280kW	426hp318kW
Torque	420Nm310lb-ft	470Nm347lb-ft
Curb weight	1,315kg2,899lb	1,710kg3,770lb
Gross weight	1,650kg3,638lb	-
Top speed	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph Calculated	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph Calculated
To 99% top speed	61.8s99% target: 297 km/h / 185 mph Calculated	74.0s99% target: 297 km/h / 185 mph Calculated
0-100 km/h	4.5s	4.9s
0-200 km/h	13.2s Calculated	14.9s Calculated
0-60 mph	4.3s Calculated	4.7s Calculated
Fuel consumption	9.9L/100 km23.8mpg US28.5mpg UK	12.8L/100 km18.4mpg US22.1mpg UK
Fuel consumption city	14.2L/100 km16.6mpg US19.9mpg UK	19L/100 km12.4mpg US14.9mpg UK
Fuel consumption highway	7.5L/100 km31.4mpg US37.7mpg UK	9.2L/100 km25.6mpg US30.7mpg UK
Quarter mile	12.4s Calculated	12.9s Calculated
Power-to-weight	285hp/t213kW/t129hp/1000 lb Calculated	249hp/t186kW/t113hp/1000 lb Calculated
Torque-to-weight	319Nm/t214lb-ft/ton Calculated	275Nm/t184lb-ft/ton Calculated
Estimated range	545km339mi Calculated	625km388mi Calculated
Displacement	3,800cc232cu in	4,735cc289cu in
Length	4,414mm174in	4,385mm173in
Width	1,801mm71in	1,865mm73in
Height	1,262mm50in	1,270mm50in
Wheelbase	2,475mm97in	2,600mm102in
Front track	1,526mm60in	1,570mm62in
Rear track	1,540mm61in	1,590mm63in
Ground clearance	106mm4in	-
Trunk volume	280L	144L
Doors	2	2
Seats	2	2
Fuel tank	54L	80L
CO2 emissions	-	296g/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.

Porsche Boxster (981) Spyder 3.8Aston Martin V8 Vantage Roadster Facelift 2008 4.7 V8PowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
PorscheBoxster (981)Spyder 3.8	6,700 rpm	4,750-6,000 rpm	6,950 rpm
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	7,300 rpm	5,000 rpm	7,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	PorscheBoxster (981)Spyder 3.8	Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8
	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	13.2 s	14.9 s
Top speed	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph Likely limited	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph Likely limited
	Drag race simulation
60 ft 18 m	2.2 s	2.2 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	10.5 s	10.9 s
1/4 mile 402 m	12.4 s	12.9 s
Trap speed 1/4 mile 402 m	194 km/h 120 mph	185 km/h 115 mph

Power comparison

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

Chart data table
Vehicle	Value
PorscheBoxster (981)Spyder 3.8	375 hp 280 kW
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	426 hp 318 kW

Aston Martin V8 Vantage Roadster Facelift 2008 4.7 V8 has 51 hp more than Porsche Boxster (981) Spyder 3.8.

The biggest power difference is between Porsche Boxster (981) Spyder 3.8 and Aston Martin V8 Vantage Roadster Facelift 2008 4.7 V8: 51 hp (38 kW).

Torque comparison

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

Chart data table
Vehicle	Value
PorscheBoxster (981)Spyder 3.8	420 Nm 310 lb-ft
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	470 Nm 347 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
PorscheBoxster (981)Spyder 3.8	1,315 kg 2,899 lb
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	1,710 kg 3,770 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
PorscheBoxster (981)Spyder 3.8	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
PorscheBoxster (981)Spyder 3.8	4.5 s
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	4.9 s

Although Aston Martin V8 Vantage Roadster Facelift 2008 4.7 V8 has more power, Porsche Boxster (981) Spyder 3.8 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche Boxster (981) Spyder 3.8 and Aston Martin V8 Vantage Roadster Facelift 2008 4.7 V8: 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
PorscheBoxster (981)Spyder 3.8	9.9 L/100 km 23.8 mpg US 28.5 mpg UK
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	12.8 L/100 km 18.4 mpg US 22.1 mpg UK

The biggest fuel consumption difference is between Porsche Boxster (981) Spyder 3.8 and Aston Martin V8 Vantage Roadster Facelift 2008 4.7 V8: 2.9 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
PorscheBoxster (981)Spyder 3.8	285 hp/t 213 kW/t 3.5 kg/hp
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	249 hp/t 186 kW/t 4.0 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
PorscheBoxster (981)Spyder 3.8	545 km 339 mi
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	625 km 388 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
PorscheBoxster (981)Spyder 3.8	375 hp 280 kW	4.5 s	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	426 hp 318 kW	4.9 s	Unrestricted 300 km/h186 mph Restricted 290 km/h180 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

PorscheBoxster (981)Spyder 3.8

Power	375 hp 280 kW
0-100 km/h	4.5 s
Top speed Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph

Doors/seats	2 doors 2 seats
Trunk	280 L 9.9 cu ft
Length	4,414 mm 173.8 in
Height	1,262 mm 49.7 in

Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8

Power	426 hp 318 kW
0-100 km/h	4.9 s
Top speed Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph

Doors/seats	2 doors 2 seats
Trunk	144 L 5.1 cu ft
Length	4,385 mm 172.6 in
Height	1,270 mm 50.0 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

PorscheBoxster (981)Spyder 3.8

Power	375 hp 280 kW
0-100 km/h	4.5 s
Top speed Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph

9.9 L/100 km

23.8 mpg US

28.5 mpg UK

Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8

Power	426 hp 318 kW
0-100 km/h	4.9 s
Top speed Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph

12.8 L/100 km

18.4 mpg US

22.1 mpg UK

Porsche Boxster (981) Spyder 3.8 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
PorscheBoxster (981)Spyder 3.8	9.9 L/100 km 23.8 mpg US 28.5 mpg UK	4.5 s
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	12.8 L/100 km 18.4 mpg US 22.1 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
PorscheBoxster (981)Spyder 3.8	285 hp/t 213 kW/t 3.5 kg/hp	9.9 L/100 km 23.8 mpg US 28.5 mpg UK
Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8	249 hp/t 186 kW/t 4.0 kg/hp	12.8 L/100 km 18.4 mpg US 22.1 mpg UK

Detailed score breakdown

Vehicle

PorscheBoxster (981)Spyder 3.8

Aston MartinV8 Vantage RoadsterFacelift 20084.7 V8

Power

375 hp

280 kW

426 hp

318 kW

Torque

420 Nm

310 lb-ft

470 Nm

347 lb-ft

Acceleration

4.5 s

4.9 s

Top speed

Unrestricted

300 km/h186 mph

Restricted

290 km/h180 mph

Unrestricted

300 km/h186 mph

Restricted

290 km/h180 mph

Lightness

1,315 kg

2,899 lb

1,710 kg

3,770 lb

Fuel consumption

9.9 L/100 km

23.8 mpg US

28.5 mpg UK

12.8 L/100 km

18.4 mpg US

22.1 mpg UK

Practicality

Doors/seats	2 doors 2 seats
Trunk	280 L 9.9 cu ft
Length	4,414 mm 173.8 in
Height	1,262 mm 49.7 in

Doors/seats	2 doors 2 seats
Trunk	144 L 5.1 cu ft
Length	4,385 mm 172.6 in
Height	1,270 mm 50.0 in

Range score

545 km

339 mi

625 km

388 mi

CO2 score

296 g/km

Trunk score

280 L

9.9 cu ft

144 L

5.1 cu ft

Power-to-weight score

285 hp/t

213 kW/t

3.5 kg/hp

249 hp/t

186 kW/t

4.0 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	Porsche Boxster (981) Spyder 3.8	Aston Martin V8 Vantage Roadster Facelift 2008 4.7 V8
Consumption	9.9 L/100 km23.8 mpg US28.5 mpg UK	12.8 L/100 km18.4 mpg US22.1 mpg UK
Cost / 100 km	17.33 LC100 km	22.40 LC100 km
Cost / 100 mi	27.88 LC100 mi	36.05 LC100 mi
Annual fuel used	1,485 L392 US gal327 UK gal	1,920 L507 US gal422 UK gal
Annual fuel cost	2,599 LC/year	3,360 LC/year