Car comparison

Porsche Boxster (981) S 3.4vsAUDI TTS Roadster (8S) 2.0 TFSI

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

New comparison

Porsche Boxster (981)

S 3.4

315 hp3436 ccGasolineRWDDual-clutchNaturally aspiratedRoadster2012-2016
VS

AUDI TTS Roadster (8S)

2.0 TFSI

310 hp1984 ccGasolineAWDAutomaticTurbochargedRoadster2014-2018

Comparison overview

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

Best choices

AUDI TTS Roadster (8S) 2.0 TFSI

  • Quickest 0-100 km/h
    4.9 s
  • Highest torque
    380 Nm
    280 lb-ft
  • Lowest combined fuel consumption
    7.1 L/100 km
    33.1 mpg US
    39.8 mpg UK
  • Lowest city consumption
    8.6 L/100 km
    27.4 mpg US
    32.8 mpg UK
  • Lowest highway consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Lowest CO2 emissions
    163 g/km
  • Best economy score
    88/100
  • Best practicality score
    32/100

Porsche Boxster (981) S 3.4

  • Fastest top speed
    277 km/h
    172 mph
  • Most powerful
    315 hp
    235 kW
  • Lightest
    1,370 kg
    3,020 lb
  • Best power-to-weight
    230 hp/t
    171 kW/t
    4.3 kg/hp
  • Best estimated range
    780 km
    485 mi
  • Largest trunk
    280 L
  • Best overall score
    57/100
  • Best performance score
    69/100

Specification comparison

Specification comparison
ModelPorscheBoxster (981)S 3.4AUDITTS Roadster (8S)2.0 TFSI
Power
315hp235kW
310hp231kW
Torque
360Nm266lb-ft
380Nm280lb-ft
Curb weight
1,370kg3,020lb
1,470kg3,241lb
Gross weight
1,685kg3,715lb
1,790kg3,946lb
Top speed
277 km/h
172 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
65.0s99% target: 274 km/h / 170 mph
Calculated
61.7s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.0s
4.9s
0-200 km/h
15.9s
Calculated
17.0s
Calculated
0-60 mph
4.8s
Calculated
4.7s
Calculated
Fuel consumption
8.2L/100 km28.7mpg US34.4mpg UK
7.1L/100 km33.1mpg US39.8mpg UK
Fuel consumption city
11.4L/100 km20.6mpg US24.8mpg UK
8.6L/100 km27.4mpg US32.8mpg UK
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
13.0s
Calculated
13.0s
Calculated
Power-to-weight
230hp/t171kW/t104hp/1000 lb
Calculated
211hp/t157kW/t96hp/1000 lb
Calculated
Torque-to-weight
263Nm/t176lb-ft/ton
Calculated
259Nm/t173lb-ft/ton
Calculated
Estimated range
780km485mi
Calculated
775km481mi
Calculated
Displacement
3,436cc210cu in
1,984cc121cu in
Length
4,374mm172in
4,191mm165in
Width
1,801mm71in
1,832mm72in
Height
1,281mm50in
1,345mm53in
Wheelbase
2,475mm97in
2,505mm99in
Front track-
1,574mm62in
Rear track-
1,553mm61in
Trunk volume
280L
280L
Doors
2
2
Seats
2
2
Fuel tank
64L
55L
CO2 emissions
190g/km
163g/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) S 3.4AUDI TTS Roadster (8S) 2.0 TFSIPowerTorque
  • Porsche Boxster (981) S 3.4: Power / Torque
  • AUDI TTS Roadster (8S) 2.0 TFSI: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
PorscheBoxster (981)S 3.46,700 rpm4,500-5,800 rpm6,950 rpm
AUDITTS Roadster (8S)2.0 TFSI5,800-6,200 rpm1,800-5,700 rpm6,450 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheBoxster (981)S 3.4AUDITTS Roadster (8S)2.0 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
4.8 s
4.7 s
0-100 km/h
0-62 mph
5.0 s
4.9 s
0-200 km/h
0-124 mph
15.9 s
17.0 s
Top speed
277 km/h
172 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.8 s
5.7 s
1/8 mile
201 m
8.6 s
8.5 s
1000 ft
305 m
11.0 s
11.0 s
1/4 mile
402 m
13.0 s
13.0 s
Trap speed
1/4 mile
402 m
182 km/h
113 mph
178 km/h
111 mph

Power comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)S 3.4
315 hp
235 kW
AUDITTS Roadster (8S)2.0 TFSI
310 hp
231 kW

Porsche Boxster (981) S 3.4 has 5 hp more than AUDI TTS Roadster (8S) 2.0 TFSI.

The biggest power difference is between AUDI TTS Roadster (8S) 2.0 TFSI and Porsche Boxster (981) S 3.4: 5 hp (4 kW).

Torque comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)S 3.4
360 Nm
266 lb-ft
AUDITTS Roadster (8S)2.0 TFSI
380 Nm
280 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)S 3.4
1,370 kg
3,020 lb
AUDITTS Roadster (8S)2.0 TFSI
1,470 kg
3,241 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)S 3.4
277 km/h
172 mph
AUDITTS Roadster (8S)2.0 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 (981)S 3.45.0 s
AUDITTS Roadster (8S)2.0 TFSI4.9 s

Although Porsche Boxster (981) S 3.4 has more power, AUDI TTS Roadster (8S) 2.0 TFSI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI TTS Roadster (8S) 2.0 TFSI and Porsche Boxster (981) S 3.4: 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)S 3.4
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
AUDITTS Roadster (8S)2.0 TFSI
7.1 L/100 km
33.1 mpg US
39.8 mpg UK

The biggest fuel consumption difference is between AUDI TTS Roadster (8S) 2.0 TFSI and Porsche Boxster (981) S 3.4: 1.1 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)S 3.4
230 hp/t
171 kW/t
4.3 kg/hp
AUDITTS Roadster (8S)2.0 TFSI
211 hp/t
157 kW/t
4.7 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
PorscheBoxster (981)S 3.4
780 km
485 mi
AUDITTS Roadster (8S)2.0 TFSI
775 km
481 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
PorscheBoxster (981)S 3.4
315 hp
235 kW
5.0 s
277 km/h
172 mph
AUDITTS Roadster (8S)2.0 TFSI
310 hp
231 kW
4.9 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 (981)S 3.4
Power
315 hp
235 kW
0-100 km/h5.0 s
Top speed
277 km/h
172 mph
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,374 mm
172.2 in
Height
1,281 mm
50.4 in
AUDITTS Roadster (8S)2.0 TFSI
Power
310 hp
231 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,191 mm
165.0 in
Height
1,345 mm
53.0 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)S 3.4
Power
315 hp
235 kW
0-100 km/h5.0 s
Top speed
277 km/h
172 mph
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
AUDITTS Roadster (8S)2.0 TFSI
Power
310 hp
231 kW
0-100 km/h4.9 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.1 L/100 km
33.1 mpg US
39.8 mpg UK

AUDI TTS Roadster (8S) 2.0 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 (981)S 3.4
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
5.0 s
AUDITTS Roadster (8S)2.0 TFSI
7.1 L/100 km
33.1 mpg US
39.8 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
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
PorscheBoxster (981)S 3.4
230 hp/t
171 kW/t
4.3 kg/hp
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
AUDITTS Roadster (8S)2.0 TFSI
211 hp/t
157 kW/t
4.7 kg/hp
7.1 L/100 km
33.1 mpg US
39.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheBoxster (981)S 3.4AUDITTS Roadster (8S)2.0 TFSI
Power
315 hp
235 kW
310 hp
231 kW
Torque
360 Nm
266 lb-ft
380 Nm
280 lb-ft
Acceleration
5.0 s
4.9 s
Top speed
277 km/h
172 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,370 kg
3,020 lb
1,470 kg
3,241 lb
Fuel consumption
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,374 mm
172.2 in
Height
1,281 mm
50.4 in
Doors/seats
2 doors
2 seats
Trunk
280 L
9.9 cu ft
Length
4,191 mm
165.0 in
Height
1,345 mm
53.0 in
Range score
780 km
485 mi
775 km
481 mi
CO2 score
190 g/km
163 g/km
Trunk score
280 L
9.9 cu ft
280 L
9.9 cu ft
Power-to-weight score
230 hp/t
171 kW/t
4.3 kg/hp
211 hp/t
157 kW/t
4.7 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) S 3.4AUDI TTS Roadster (8S) 2.0 TFSI
Consumption8.2 L/100 km28.7 mpg US34.4 mpg UK7.1 L/100 km33.1 mpg US39.8 mpg UK
Cost / 100 km14.35 LC100 km12.42 LC100 km
Cost / 100 mi23.09 LC100 mi20.00 LC100 mi
Annual fuel used1,230 L325 US gal271 UK gal1,065 L281 US gal234 UK gal
Annual fuel cost2,153 LC/year1,864 LC/year

Head-to-head comparisons

Porsche Boxster (981) S 3.4

  • Has 5 hp more
  • Is 100 kg lighter
  • Has 17 km/h (11 mph) higher top speed
  • Has 19 hp/t better power-to-weight
  • Has 6 km (4 mi) more estimated range

Pros

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

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Highest CO2 emissions

AUDI TTS Roadster (8S) 2.0 TFSI

  • Has 20 Nm more
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 1.1 L/100 km less fuel
  • Emits 27 g/km less CO2

Pros

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

Cons

  • Lowest power
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Boxster (981) S 3.4
AUDI TTS Roadster (8S) 2.0 TFSI
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