Car comparison

Porsche Boxster (981) Spyder 3.8vsAUDI TT RS Roadster (8J) · Facelift 2010 2.5 TFSI plus

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

AUDI TT RS Roadster (8J) · Facelift 2010

2.5 TFSI plus

360 hp2480 ccGasolineAWDManualTurbochargedRoadster2011-2014

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
  • Most powerful
    375 hp
    280 kW
  • Lightest
    1,315 kg
    2,899 lb
  • Best power-to-weight
    285 hp/t
    213 kW/t
    3.5 kg/hp
  • Largest trunk
    280 L
  • Best overall score
    62/100
  • Best performance score
    77/100
  • Best practicality score
    31/100

AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus

  • Quickest 0-100 km/h
    4.4 s
  • Highest torque
    465 Nm
    343 lb-ft
  • Lowest combined fuel consumption
    9.1 L/100 km
    25.8 mpg US
    31.0 mpg UK
  • Lowest city consumption
    12.8 L/100 km
    18.4 mpg US
    22.1 mpg UK
  • Lowest highway consumption
    7.0 L/100 km
    33.6 mpg US
    40.4 mpg UK
  • Best estimated range
    659 km
    410 mi
  • Best economy score
    82/100

Specification comparison

Specification comparison
ModelPorscheBoxster (981)Spyder 3.8AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Power
375hp280kW
360hp268kW
Torque
420Nm310lb-ft
465Nm343lb-ft
Curb weight
1,315kg2,899lb
1,510kg3,329lb
Gross weight
1,650kg3,638lb
1,830kg4,034lb
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Calculated
280 km/h
174 mph
To 99% top speed
61.8s99% target: 297 km/h / 185 mph
Calculated
60.8s99% target: 277 km/h / 172 mph
Calculated
0-100 km/h
4.5s
4.4s
0-200 km/h
13.2s
Calculated
14.1s
Calculated
0-60 mph
4.3s
Calculated
4.2s
Calculated
Fuel consumption
9.9L/100 km23.8mpg US28.5mpg UK
9.1L/100 km25.8mpg US31.0mpg UK
Fuel consumption city
14.2L/100 km16.6mpg US19.9mpg UK
12.8L/100 km18.4mpg US22.1mpg UK
Fuel consumption highway
7.5L/100 km31.4mpg US37.7mpg UK
7L/100 km33.6mpg US40.4mpg UK
Quarter mile
12.4s
Calculated
12.4s
Calculated
Power-to-weight
285hp/t213kW/t129hp/1000 lb
Calculated
238hp/t178kW/t108hp/1000 lb
Calculated
Torque-to-weight
319Nm/t214lb-ft/ton
Calculated
308Nm/t206lb-ft/ton
Calculated
Estimated range
545km339mi
Calculated
659km410mi
Calculated
Displacement
3,800cc232cu in
2,480cc151cu in
Length
4,414mm174in
4,198mm165in
Width
1,801mm71in
1,842mm73in
Height
1,262mm50in
1,348mm53in
Wheelbase
2,475mm97in
2,468mm97in
Front track
1,526mm60in
1,555mm61in
Rear track
1,540mm61in
1,546mm61in
Ground clearance
106mm4in
-
Trunk volume
280L
250L
Doors
2
2
Seats
2
2
Fuel tank
54L
60L
CO2 emissions-
212g/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 3.8AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plusPowerTorque
  • Porsche Boxster (981) Spyder 3.8: Power / Torque
  • AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus: 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus5,500-6,700 rpm1,650-5,400 rpm6,950 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheBoxster (981)Spyder 3.8AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
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
14.1 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Likely limited
280 km/h
174 mph
Drag race simulation
60 ft
18 m
2.2 s
2.1 s
330 ft
101 m
5.5 s
5.5 s
1/8 mile
201 m
8.2 s
8.2 s
1000 ft
305 m
10.5 s
10.5 s
1/4 mile
402 m
12.4 s
12.4 s
Trap speed
1/4 mile
402 m
194 km/h
120 mph
188 km/h
117 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
360 hp
268 kW

Porsche Boxster (981) Spyder 3.8 has 15 hp more than AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus.

The biggest power difference is between AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus and Porsche Boxster (981) Spyder 3.8: 15 hp (11 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
465 Nm
343 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
1,510 kg
3,329 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
280 km/h
174 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus4.4 s

Although Porsche Boxster (981) Spyder 3.8 has more power, AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

The biggest fuel consumption difference is between AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus and Porsche Boxster (981) Spyder 3.8: 0.8 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
238 hp/t
178 kW/t
4.2 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
659 km
410 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
360 hp
268 kW
4.4 s
280 km/h
174 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Power
360 hp
268 kW
0-100 km/h4.4 s
Top speed
280 km/h
174 mph
Doors/seats
2 doors
2 seats
Trunk
250 L
8.8 cu ft
Length
4,198 mm
165.3 in
Height
1,348 mm
53.1 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Power
360 hp
268 kW
0-100 km/h4.4 s
Top speed
280 km/h
174 mph
9.1 L/100 km
25.8 mpg US
31.0 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
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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
9.1 L/100 km
25.8 mpg US
31.0 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
AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
238 hp/t
178 kW/t
4.2 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheBoxster (981)Spyder 3.8AUDITT RS Roadster (8J)Facelift 20102.5 TFSI plus
Power
375 hp
280 kW
360 hp
268 kW
Torque
420 Nm
310 lb-ft
465 Nm
343 lb-ft
Acceleration
4.5 s
4.4 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
280 km/h
174 mph
Lightness
1,315 kg
2,899 lb
1,510 kg
3,329 lb
Fuel consumption
9.9 L/100 km
23.8 mpg US
28.5 mpg UK
9.1 L/100 km
25.8 mpg US
31.0 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
250 L
8.8 cu ft
Length
4,198 mm
165.3 in
Height
1,348 mm
53.1 in
Range score
545 km
339 mi
659 km
410 mi
CO2 score
-
212 g/km
Trunk score
280 L
9.9 cu ft
250 L
8.8 cu ft
Power-to-weight score
285 hp/t
213 kW/t
3.5 kg/hp
238 hp/t
178 kW/t
4.2 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 3.8AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus
Consumption9.9 L/100 km23.8 mpg US28.5 mpg UK9.1 L/100 km25.8 mpg US31 mpg UK
Cost / 100 km17.33 LC100 km15.92 LC100 km
Cost / 100 mi27.88 LC100 mi25.63 LC100 mi
Annual fuel used1,485 L392 US gal327 UK gal1,365 L361 US gal300 UK gal
Annual fuel cost2,599 LC/year2,389 LC/year

Head-to-head comparisons

Porsche Boxster (981) Spyder 3.8

  • Has 15 hp more
  • Is 195 kg lighter
  • Has 20 km/h (12 mph) higher top speed
  • Has 47 hp/t better power-to-weight
  • Has 30 L more trunk volume

Pros

  • Highest top speed
  • Most powerful
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption

AUDI TT RS Roadster (8J) Facelift 2010 2.5 TFSI plus

  • Has 45 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 0.8 L/100 km less fuel
  • Has 114 km (71 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed
  • Smallest trunk

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Boxster (981) Spyder 3.8
AUDI TT RS Roadster (8J) 2.5 TFSI plus
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2 vehicles selected

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