Car comparison

Porsche Boxster (981) Spyder 3.8vsWiesmann Roadster MF4 S 4.0 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
VS

Wiesmann Roadster MF4

S 4.0 V8

420 hp3999 ccGasolineRWDAutomaticNaturally aspiratedRoadster2009-2014

Comparison overview

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

Best choices

Porsche Boxster (981) Spyder 3.8

  • Fastest top speed
    300 km/h
    186 mph Unrestricted
    290 km/h
    180 mph Restricted
  • Highest torque
    420 Nm
    310 lb-ft
  • Lightest
    1,315 kg
    2,899 lb
  • 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 S 4.0 V8

  • Quickest 0-100 km/h
    4.4 s
  • Most powerful
    420 hp
    313 kW
  • Best power-to-weight
    302 hp/t
    225 kW/t
    3.3 kg/hp
  • Best estimated range
    574 km
    357 mi
  • Best overall score
    63/100
  • Best performance score
    78/100

Specification comparison

Specification comparison
ModelPorscheBoxster (981)Spyder 3.8WiesmannRoadster MF4S 4.0 V8
Power
375hp280kW
420hp313kW
Torque
420Nm310lb-ft
400Nm295lb-ft
Curb weight
1,315kg2,899lb
1,390kg3,064lb
Gross weight
1,650kg3,638lb
-
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Calculated
293 km/h
182 mph
To 99% top speed
61.8s99% target: 297 km/h / 185 mph
Calculated
57.1s99% target: 290 km/h / 180 mph
Calculated
0-100 km/h
4.5s
4.4s
0-200 km/h
13.2s
Calculated
13.0s
Calculated
0-60 mph
4.3s
Calculated
4.2s
Calculated
Fuel consumption
9.9L/100 km23.8mpg US28.5mpg UK
12.2L/100 km19.3mpg US23.2mpg UK
Fuel consumption city
14.2L/100 km16.6mpg US19.9mpg UK
17.9L/100 km13.1mpg US15.8mpg UK
Fuel consumption highway
7.5L/100 km31.4mpg US37.7mpg UK
9L/100 km26.1mpg US31.4mpg UK
Quarter mile
12.4s
Calculated
12.3s
Calculated
Power-to-weight
285hp/t213kW/t129hp/1000 lb
Calculated
302hp/t225kW/t137hp/1000 lb
Calculated
Torque-to-weight
319Nm/t214lb-ft/ton
Calculated
288Nm/t193lb-ft/ton
Calculated
Estimated range
545km339mi
Calculated
574km357mi
Calculated
Displacement
3,800cc232cu in
3,999cc244cu 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-
275g/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 S 4.0 V8PowerTorque
  • Porsche Boxster (981) Spyder 3.8: Power / Torque
  • Wiesmann Roadster MF4 S 4.0 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheBoxster (981)Spyder 3.86,700 rpm4,750-6,000 rpm6,950 rpm
WiesmannRoadster MF4S 4.0 V88,300 rpm3,900 rpm8,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheBoxster (981)Spyder 3.8WiesmannRoadster MF4S 4.0 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
4.2 s
0-100 km/h
0-62 mph
4.5 s
4.4 s
0-200 km/h
0-124 mph
13.2 s
13.0 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Likely limited
293 km/h
182 mph
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.5 s
5.5 s
1/8 mile
201 m
8.2 s
8.1 s
1000 ft
305 m
10.5 s
10.4 s
1/4 mile
402 m
12.4 s
12.3 s
Trap speed
1/4 mile
402 m
194 km/h
120 mph
195 km/h
121 mph

Power comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)Spyder 3.8
375 hp
280 kW
WiesmannRoadster MF4S 4.0 V8
420 hp
313 kW

Wiesmann Roadster MF4 S 4.0 V8 has 45 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 S 4.0 V8: 45 hp (34 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)Spyder 3.8
420 Nm
310 lb-ft
WiesmannRoadster MF4S 4.0 V8
400 Nm
295 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)Spyder 3.8
1,315 kg
2,899 lb
WiesmannRoadster MF4S 4.0 V8
1,390 kg
3,064 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
PorscheBoxster (981)Spyder 3.8
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
WiesmannRoadster MF4S 4.0 V8
293 km/h
182 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)Spyder 3.84.5 s
WiesmannRoadster MF4S 4.0 V84.4 s

The biggest 0-100 km/h difference is between Wiesmann Roadster MF4 S 4.0 V8 and Porsche Boxster (981) Spyder 3.8: 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
VehicleValue
PorscheBoxster (981)Spyder 3.8
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
WiesmannRoadster MF4S 4.0 V8
12.2 L/100 km
19.3 mpg US
23.2 mpg UK

The biggest fuel consumption difference is between Porsche Boxster (981) Spyder 3.8 and Wiesmann Roadster MF4 S 4.0 V8: 2.3 L/100 km.

Power-to-weight comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)Spyder 3.8
285 hp/t
213 kW/t
3.5 kg/hp
WiesmannRoadster MF4S 4.0 V8
302 hp/t
225 kW/t
3.3 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)Spyder 3.8
545 km
339 mi
WiesmannRoadster MF4S 4.0 V8
574 km
357 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheBoxster (981)Spyder 3.8
375 hp
280 kW
4.5 s
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
WiesmannRoadster MF4S 4.0 V8
420 hp
313 kW
4.4 s
293 km/h
182 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
PorscheBoxster (981)Spyder 3.8
Power
375 hp
280 kW
0-100 km/h4.5 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 MF4S 4.0 V8
Power
420 hp
313 kW
0-100 km/h4.4 s
Top speed
293 km/h
182 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.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
PorscheBoxster (981)Spyder 3.8
Power
375 hp
280 kW
0-100 km/h4.5 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 MF4S 4.0 V8
Power
420 hp
313 kW
0-100 km/h4.4 s
Top speed
293 km/h
182 mph
12.2 L/100 km
19.3 mpg US
23.2 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
VehicleFuel consumption, L/100 km0-100 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 MF4S 4.0 V8
12.2 L/100 km
19.3 mpg US
23.2 mpg UK
4.4 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
VehiclePower-to-weight, hp/tFuel 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 MF4S 4.0 V8
302 hp/t
225 kW/t
3.3 kg/hp
12.2 L/100 km
19.3 mpg US
23.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheBoxster (981)Spyder 3.8WiesmannRoadster MF4S 4.0 V8
Power
375 hp
280 kW
420 hp
313 kW
Torque
420 Nm
310 lb-ft
400 Nm
295 lb-ft
Acceleration
4.5 s
4.4 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
293 km/h
182 mph
Lightness
1,315 kg
2,899 lb
1,390 kg
3,064 lb
Fuel consumption
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
12.2 L/100 km
19.3 mpg US
23.2 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
574 km
357 mi
CO2 score
-
275 g/km
Trunk score
280 L
9.9 cu ft
-
Power-to-weight score
285 hp/t
213 kW/t
3.5 kg/hp
302 hp/t
225 kW/t
3.3 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

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
VehiclePorsche Boxster (981) Spyder 3.8Wiesmann Roadster MF4 S 4.0 V8
Consumption9.9 L/100 km23.8 mpg US28.5 mpg UK12.2 L/100 km19.3 mpg US23.2 mpg UK
Cost / 100 km17.33 LC100 km21.35 LC100 km
Cost / 100 mi27.88 LC100 mi34.36 LC100 mi
Annual fuel used1,485 L392 US gal327 UK gal1,830 L483 US gal403 UK gal
Annual fuel cost2,599 LC/year3,203 LC/year

Head-to-head comparisons

Porsche Boxster (981) Spyder 3.8

  • Has 20 Nm more
  • Is 75 kg lighter
  • Has 7 km/h (4 mph) higher top speed
  • Uses 2.3 L/100 km less fuel

Pros

  • Highest top speed
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption

Cons

  • Slowest 0-100 km/h
  • Lowest power

Wiesmann Roadster MF4 S 4.0 V8

  • Has 45 hp more
  • Is 0.1 s quicker from 0-100 km/h
  • Has 17 hp/t better power-to-weight
  • Has 28 km (18 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Boxster (981) Spyder 3.8
Wiesmann Roadster MF4 S 4.0 V8
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