Car comparison

Porsche Boxster (987) · Facelift 2009 S 3.4vsAUDI TT RS Roadster (8J) 2.5 TFSI

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

New comparison

Porsche Boxster (987) · Facelift 2009

S 3.4

310 hp3436 ccGasolineRWDManualNaturally aspiratedRoadster2009-2012
VS

AUDI TT RS Roadster (8J)

2.5 TFSI

340 hp2480 ccGasolineAWDManualTurbochargedRoadster2009-2010

Comparison overview

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

Best choices

AUDI TT RS Roadster (8J) 2.5 TFSI

  • Quickest 0-100 km/h
    4.7 s
  • Most powerful
    340 hp
    254 kW
  • Highest torque
    450 Nm
    332 lb-ft
  • Lowest combined fuel consumption
    9.5 L/100 km
    24.8 mpg US
    29.7 mpg UK
  • Lowest city consumption
    13.3 L/100 km
    17.7 mpg US
    21.2 mpg UK
  • Lowest CO2 emissions
    221 g/km
  • Largest trunk
    250 L
  • Best overall score
    58/100
  • Best performance score
    71/100
  • Best practicality score
    30/100

Porsche Boxster (987) Facelift 2009 S 3.4

  • Fastest top speed
    274 km/h
    170 mph
  • Lightest
    1,355 kg
    2,987 lb
  • Best power-to-weight
    229 hp/t
    171 kW/t
    4.4 kg/hp
  • Lowest highway consumption
    7.2 L/100 km
    32.7 mpg US
    39.2 mpg UK
  • Best estimated range
    663 km
    412 mi
  • Best economy score
    81/100

Specification comparison

Specification comparison
ModelPorscheBoxster (987)Facelift 2009S 3.4AUDITT RS Roadster (8J)2.5 TFSI
Power
310hp231kW
340hp254kW
Torque
360Nm266lb-ft
450Nm332lb-ft
Curb weight
1,355kg2,987lb
1,510kg3,329lb
Gross weight
1,645kg3,627lb
1,830kg4,034lb
Top speed
274 km/h
170 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
80.7s99% target: 271 km/h / 169 mph
Calculated
61.0s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.3s
4.7s
0-200 km/h
18.4s
16.6s
Calculated
0-60 mph
5.0s
Calculated
4.5s
Calculated
Fuel consumption
9.8L/100 km24mpg US28.8mpg UK
9.5L/100 km24.8mpg US29.7mpg UK
Fuel consumption city
14.4L/100 km16.3mpg US19.6mpg UK
13.3L/100 km17.7mpg US21.2mpg UK
Fuel consumption highway
7.2L/100 km32.7mpg US39.2mpg UK
7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile
13.4s
Calculated
12.8s
Calculated
Power-to-weight
229hp/t171kW/t104hp/1000 lb
Calculated
225hp/t168kW/t102hp/1000 lb
Calculated
Torque-to-weight
266Nm/t178lb-ft/ton
Calculated
298Nm/t199lb-ft/ton
Calculated
Estimated range
663km412mi
Calculated
632km392mi
Calculated
Displacement
3,436cc210cu in
2,480cc151cu in
Length
4,342mm171in
4,198mm165in
Width
1,801mm71in
1,842mm73in
Height
1,294mm51in
1,348mm53in
Wheelbase
2,415mm95in
2,468mm97in
Front track
1,486mm59in
1,555mm61in
Rear track
1,528mm60in
1,546mm61in
Ground clearance
123mm5in
-
Trunk volume
130L
250L
Doors
2
2
Seats
2
2
Fuel tank
65L
60L
CO2 emissions
230g/km
221g/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 (987) Facelift 2009 S 3.4AUDI TT RS Roadster (8J) 2.5 TFSIPowerTorque
  • Porsche Boxster (987) Facelift 2009 S 3.4: Power / Torque
  • AUDI TT RS Roadster (8J) 2.5 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheBoxster (987)Facelift 2009S 3.47,200 rpm4,750 rpm7,500 rpm
AUDITT RS Roadster (8J)2.5 TFSI5,400-6,500 rpm1,600-6,500 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheBoxster (987)Facelift 2009S 3.4AUDITT RS Roadster (8J)2.5 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
5.0 s
4.5 s
0-100 km/h
0-62 mph
5.3 s
4.7 s
0-200 km/h
0-124 mph
18.4 s
16.6 s
Top speed
274 km/h
170 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.1 s
330 ft
101 m
5.8 s
5.6 s
1/8 mile
201 m
8.8 s
8.4 s
1000 ft
305 m
11.3 s
10.8 s
1/4 mile
402 m
13.4 s
12.8 s
Trap speed
1/4 mile
402 m
173 km/h
108 mph
179 km/h
112 mph

Power comparison

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

Chart data table
VehicleValue
PorscheBoxster (987)Facelift 2009S 3.4
310 hp
231 kW
AUDITT RS Roadster (8J)2.5 TFSI
340 hp
254 kW

AUDI TT RS Roadster (8J) 2.5 TFSI has 30 hp more than Porsche Boxster (987) Facelift 2009 S 3.4.

The biggest power difference is between Porsche Boxster (987) Facelift 2009 S 3.4 and AUDI TT RS Roadster (8J) 2.5 TFSI: 30 hp (22 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheBoxster (987)Facelift 2009S 3.4
360 Nm
266 lb-ft
AUDITT RS Roadster (8J)2.5 TFSI
450 Nm
332 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
PorscheBoxster (987)Facelift 2009S 3.4
1,355 kg
2,987 lb
AUDITT RS Roadster (8J)2.5 TFSI
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 (987)Facelift 2009S 3.4
274 km/h
170 mph
AUDITT RS Roadster (8J)2.5 TFSI
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
PorscheBoxster (987)Facelift 2009S 3.45.3 s
AUDITT RS Roadster (8J)2.5 TFSI4.7 s

The biggest 0-100 km/h difference is between AUDI TT RS Roadster (8J) 2.5 TFSI and Porsche Boxster (987) Facelift 2009 S 3.4: 0.6 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 (987)Facelift 2009S 3.4
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
AUDITT RS Roadster (8J)2.5 TFSI
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
PorscheBoxster (987)Facelift 2009S 3.4
229 hp/t
171 kW/t
4.4 kg/hp
AUDITT RS Roadster (8J)2.5 TFSI
225 hp/t
168 kW/t
4.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
PorscheBoxster (987)Facelift 2009S 3.4
663 km
412 mi
AUDITT RS Roadster (8J)2.5 TFSI
632 km
392 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheBoxster (987)Facelift 2009S 3.4
310 hp
231 kW
5.3 s
274 km/h
170 mph
AUDITT RS Roadster (8J)2.5 TFSI
340 hp
254 kW
4.7 s
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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 (987)Facelift 2009S 3.4
Power
310 hp
231 kW
0-100 km/h5.3 s
Top speed
274 km/h
170 mph
Doors/seats
2 doors
2 seats
Trunk
130 L
4.6 cu ft
Length
4,342 mm
170.9 in
Height
1,294 mm
50.9 in
AUDITT RS Roadster (8J)2.5 TFSI
Power
340 hp
254 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 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 (987)Facelift 2009S 3.4
Power
310 hp
231 kW
0-100 km/h5.3 s
Top speed
274 km/h
170 mph
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
AUDITT RS Roadster (8J)2.5 TFSI
Power
340 hp
254 kW
0-100 km/h4.7 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

AUDI TT RS Roadster (8J) 2.5 TFSI 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 (987)Facelift 2009S 3.4
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
5.3 s
AUDITT RS Roadster (8J)2.5 TFSI
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
4.7 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 (987)Facelift 2009S 3.4
229 hp/t
171 kW/t
4.4 kg/hp
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
AUDITT RS Roadster (8J)2.5 TFSI
225 hp/t
168 kW/t
4.4 kg/hp
9.5 L/100 km
24.8 mpg US
29.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheBoxster (987)Facelift 2009S 3.4AUDITT RS Roadster (8J)2.5 TFSI
Power
310 hp
231 kW
340 hp
254 kW
Torque
360 Nm
266 lb-ft
450 Nm
332 lb-ft
Acceleration
5.3 s
4.7 s
Top speed
274 km/h
170 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,355 kg
2,987 lb
1,510 kg
3,329 lb
Fuel consumption
9.8 L/100 km
24.0 mpg US
28.8 mpg UK
9.5 L/100 km
24.8 mpg US
29.7 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
130 L
4.6 cu ft
Length
4,342 mm
170.9 in
Height
1,294 mm
50.9 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
663 km
412 mi
632 km
392 mi
CO2 score
230 g/km
221 g/km
Trunk score
130 L
4.6 cu ft
250 L
8.8 cu ft
Power-to-weight score
229 hp/t
171 kW/t
4.4 kg/hp
225 hp/t
168 kW/t
4.4 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 (987) Facelift 2009 S 3.4AUDI TT RS Roadster (8J) 2.5 TFSI
Consumption9.8 L/100 km24 mpg US28.8 mpg UK9.5 L/100 km24.8 mpg US29.7 mpg UK
Cost / 100 km17.15 LC100 km16.63 LC100 km
Cost / 100 mi27.60 LC100 mi26.76 LC100 mi
Annual fuel used1,470 L388 US gal323 UK gal1,425 L376 US gal313 UK gal
Annual fuel cost2,573 LC/year2,494 LC/year

Head-to-head comparisons

Porsche Boxster (987) Facelift 2009 S 3.4

  • Is 155 kg lighter
  • Has 14 km/h (9 mph) higher top speed
  • Has 4 hp/t better power-to-weight
  • Has 32 km (20 mi) more estimated range

Pros

  • Highest top speed
  • Lightest
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

AUDI TT RS Roadster (8J) 2.5 TFSI

  • Has 30 hp more
  • Has 90 Nm more
  • Is 0.6 s quicker from 0-100 km/h
  • Uses 0.3 L/100 km less fuel
  • Has 120 L more trunk volume
  • Emits 9 g/km less CO2

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Largest trunk

Cons

  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Boxster (987) S 3.4
AUDI TT RS Roadster (8J) 2.5 TFSI
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2 vehicles selected

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