Car comparison

Porsche Boxster (981) Spyder 3.8vsWiesmann Roadster MF4 4.4 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

Wiesmann Roadster MF4

4.4 V8

407 hp4395 ccGasolineRWDAutomaticTwin-turboRoadster2009-2014

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
Best economy score
80/100
Best practicality score
31/100

Wiesmann Roadster MF4 4.4 V8

Most powerful
407 hp
304 kW
Highest torque
600 Nm
443 lb-ft
Best estimated range
569 km
354 mi
Best overall score
65/100
Best performance score
81/100

Specification comparison

Specification comparison
Model	PorscheBoxster (981)Spyder 3.8	WiesmannRoadster MF44.4 V8
Power	375hp280kW	407hp304kW
Torque	420Nm310lb-ft	600Nm443lb-ft
Curb weight	1,315kg2,899lb	1,455kg3,208lb
Gross weight	1,650kg3,638lb	-
Top speed	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph Calculated	291 km/h 181 mph
To 99% top speed	61.8s99% target: 297 km/h / 185 mph Calculated	61.2s99% target: 288 km/h / 179 mph Calculated
0-100 km/h	4.5s	4.6s
0-200 km/h	13.2s Calculated	13.8s Calculated
0-60 mph	4.3s Calculated	4.4s Calculated
Fuel consumption	9.9L/100 km23.8mpg US28.5mpg UK	12.3L/100 km19.1mpg US23.0mpg UK
Fuel consumption city	14.2L/100 km16.6mpg US19.9mpg UK	17.2L/100 km13.7mpg US16.4mpg UK
Fuel consumption highway	7.5L/100 km31.4mpg US37.7mpg UK	9.4L/100 km25mpg US30.1mpg UK
Quarter mile	12.4s Calculated	12.5s Calculated
Power-to-weight	285hp/t213kW/t129hp/1000 lb Calculated	280hp/t209kW/t127hp/1000 lb Calculated
Torque-to-weight	319Nm/t214lb-ft/ton Calculated	412Nm/t276lb-ft/ton Calculated
Estimated range	545km339mi Calculated	569km354mi Calculated
Displacement	3,800cc232cu in	4,395cc268cu in
Length	4,414mm174in	4,230mm167in
Width	1,801mm71in	1,880mm74in
Height	1,262mm50in	1,190mm47in
Wheelbase	2,475mm97in	2,507mm99in
Front track	1,526mm60in	-
Rear track	1,540mm61in	-
Ground clearance	106mm4in	-
Trunk volume	280L	-
Doors	2	2
Seats	2	2
Fuel tank	54L	70L
CO2 emissions	-	285g/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 3.8Wiesmann Roadster MF4 4.4 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
WiesmannRoadster MF44.4 V8	5,500-6,400 rpm	1,750-4,500 rpm	6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	PorscheBoxster (981)Spyder 3.8	WiesmannRoadster MF44.4 V8
	Acceleration checkpoints
0-60 mph 0-97 km/h	4.3 s	4.4 s
0-100 km/h 0-62 mph	4.5 s	4.6 s
0-200 km/h 0-124 mph	13.2 s	13.8 s
Top speed	Unrestricted 300 km/h186 mph Restricted 290 km/h180 mph Likely limited	291 km/h 181 mph
	Drag race simulation
60 ft 18 m	2.2 s	2.2 s
330 ft 101 m	5.5 s	5.6 s
1/8 mile 201 m	8.2 s	8.3 s
1000 ft 305 m	10.5 s	10.6 s
1/4 mile 402 m	12.4 s	12.5 s
Trap speed 1/4 mile 402 m	194 km/h 120 mph	190 km/h 118 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
WiesmannRoadster MF44.4 V8	407 hp 304 kW

Wiesmann Roadster MF4 4.4 V8 has 32 hp more than Porsche Boxster (981) Spyder 3.8.

The biggest power difference is between Porsche Boxster (981) Spyder 3.8 and Wiesmann Roadster MF4 4.4 V8: 32 hp (24 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
WiesmannRoadster MF44.4 V8	600 Nm 443 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
WiesmannRoadster MF44.4 V8	1,455 kg 3,208 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
WiesmannRoadster MF44.4 V8	291 km/h 181 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
WiesmannRoadster MF44.4 V8	4.6 s

Although Wiesmann Roadster MF4 4.4 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 Wiesmann Roadster MF4 4.4 V8: 0.1 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
WiesmannRoadster MF44.4 V8	12.3 L/100 km 19.1 mpg US 23.0 mpg UK

The biggest fuel consumption difference is between Porsche Boxster (981) Spyder 3.8 and Wiesmann Roadster MF4 4.4 V8: 2.4 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
WiesmannRoadster MF44.4 V8	280 hp/t 209 kW/t 3.6 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
WiesmannRoadster MF44.4 V8	569 km 354 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
WiesmannRoadster MF44.4 V8	407 hp 304 kW	4.6 s	291 km/h 181 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

WiesmannRoadster MF44.4 V8

Power	407 hp 304 kW
0-100 km/h	4.6 s
Top speed 291 km/h 181 mph

Doors/seats	2 doors 2 seats
Trunk	-
Length	4,230 mm 166.5 in
Height	1,190 mm 46.9 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

WiesmannRoadster MF44.4 V8

Power	407 hp 304 kW
0-100 km/h	4.6 s
Top speed 291 km/h 181 mph

12.3 L/100 km

19.1 mpg US

23.0 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
WiesmannRoadster MF44.4 V8	12.3 L/100 km 19.1 mpg US 23.0 mpg UK	4.6 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
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
WiesmannRoadster MF44.4 V8	280 hp/t 209 kW/t 3.6 kg/hp	12.3 L/100 km 19.1 mpg US 23.0 mpg UK

Detailed score breakdown

Vehicle

PorscheBoxster (981)Spyder 3.8

WiesmannRoadster MF44.4 V8

Power

375 hp

280 kW

407 hp

304 kW

Torque

420 Nm

310 lb-ft

600 Nm

443 lb-ft

Acceleration

4.5 s

4.6 s

Top speed

Unrestricted

300 km/h186 mph

Restricted

290 km/h180 mph

291 km/h

181 mph

Lightness

1,315 kg

2,899 lb

1,455 kg

3,208 lb

Fuel consumption

9.9 L/100 km

23.8 mpg US

28.5 mpg UK

12.3 L/100 km

19.1 mpg US

23.0 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	-
Length	4,230 mm 166.5 in
Height	1,190 mm 46.9 in

Range score

545 km

339 mi

569 km

354 mi

CO2 score

285 g/km

Trunk score

280 L

9.9 cu ft

Power-to-weight score

285 hp/t

213 kW/t

3.5 kg/hp

280 hp/t

209 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	Porsche Boxster (981) Spyder 3.8	Wiesmann Roadster MF4 4.4 V8
Consumption	9.9 L/100 km23.8 mpg US28.5 mpg UK	12.3 L/100 km19.1 mpg US23 mpg UK
Cost / 100 km	17.33 LC100 km	21.53 LC100 km
Cost / 100 mi	27.88 LC100 mi	34.64 LC100 mi
Annual fuel used	1,485 L392 US gal327 UK gal	1,845 L487 US gal406 UK gal
Annual fuel cost	2,599 LC/year	3,229 LC/year