Car comparison

Porsche Boxster (981) S 3.4vsAUDI TTS Roadster (8S) · Facelift 2018 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 ccGasolineRWDManualNaturally aspiratedRoadster2012-2016
VS

AUDI TTS Roadster (8S) · Facelift 2018

2.0 TFSI

306 hp1984 ccGasolineAWDAutomaticTurbochargedRoadster2018-2020

Comparison overview

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

Best choices

AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI

  • Quickest 0-100 km/h
    4.8 s
  • Highest torque
    400 Nm
    295 lb-ft
  • Lowest combined fuel consumption
    7.3 L/100 km
    32.2 mpg US
    38.7 mpg UK
  • Lowest city consumption
    9.2 L/100 km
    25.6 mpg US
    30.7 mpg UK
  • Lowest highway consumption
    6.2 L/100 km
    37.9 mpg US
    45.6 mpg UK
  • Lowest CO2 emissions
    166 g/km
  • Best economy score
    87/100
  • Best practicality score
    32/100

Porsche Boxster (981) S 3.4

  • Fastest top speed
    279 km/h
    173 mph
  • Most powerful
    315 hp
    235 kW
  • Lightest
    1,340 kg
    2,954 lb
  • Best power-to-weight
    235 hp/t
    175 kW/t
    4.3 kg/hp
  • Best estimated range
    711 km
    442 mi
  • Largest trunk
    280 L
  • Best overall score
    58/100
  • Best performance score
    70/100

Specification comparison

Specification comparison
ModelPorscheBoxster (981)S 3.4AUDITTS Roadster (8S)Facelift 20182.0 TFSI
Power
315hp235kW
306hp228kW
Torque
360Nm266lb-ft
400Nm295lb-ft
Curb weight
1,340kg2,954lb
1,495kg3,296lb
Gross weight
1,655kg3,649lb
1,825kg4,023lb
Top speed
279 km/h
173 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
66.4s99% target: 276 km/h / 172 mph
Calculated
62.7s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
5.1s
4.8s
0-200 km/h
16.1s
Calculated
17.0s
Calculated
0-60 mph
4.9s
Calculated
4.6s
Calculated
Fuel consumption
9L/100 km26.1mpg US31.4mpg UK
7.3L/100 km32.2mpg US38.7mpg UK
Fuel consumption city
12.7L/100 km18.5mpg US22.2mpg UK
9.2L/100 km25.6mpg US30.7mpg UK
Fuel consumption highway
7.1L/100 km33.1mpg US39.8mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
13.1s
Calculated
12.9s
Calculated
Power-to-weight
235hp/t175kW/t107hp/1000 lb
Calculated
205hp/t153kW/t93hp/1000 lb
Calculated
Torque-to-weight
269Nm/t180lb-ft/ton
Calculated
268Nm/t179lb-ft/ton
Calculated
Estimated range
711km442mi
Calculated
616km383mi
Calculated
Displacement
3,436cc210cu in
1,984cc121cu in
Length
4,374mm172in
4,199mm165in
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
45L
CO2 emissions
211g/km
166g/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) Facelift 2018 2.0 TFSIPowerTorque
  • Porsche Boxster (981) S 3.4: Power / Torque
  • AUDI TTS Roadster (8S) Facelift 2018 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)Facelift 20182.0 TFSI5,400-6,500 rpm2,000-5,300 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorscheBoxster (981)S 3.4AUDITTS Roadster (8S)Facelift 20182.0 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
4.9 s
4.6 s
0-100 km/h
0-62 mph
5.1 s
4.8 s
0-200 km/h
0-124 mph
16.1 s
17.0 s
Top speed
279 km/h
173 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.3 s
2.1 s
330 ft
101 m
5.8 s
5.6 s
1/8 mile
201 m
8.7 s
8.4 s
1000 ft
305 m
11.1 s
10.9 s
1/4 mile
402 m
13.1 s
12.9 s
Trap speed
1/4 mile
402 m
181 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)Facelift 20182.0 TFSI
306 hp
228 kW

Porsche Boxster (981) S 3.4 has 9 hp more than AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI.

The biggest power difference is between AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI and Porsche Boxster (981) S 3.4: 9 hp (7 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)Facelift 20182.0 TFSI
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)S 3.4
1,340 kg
2,954 lb
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
1,495 kg
3,296 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
279 km/h
173 mph
AUDITTS Roadster (8S)Facelift 20182.0 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 3.45.1 s
AUDITTS Roadster (8S)Facelift 20182.0 TFSI4.8 s

Although Porsche Boxster (981) S 3.4 has more power, AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI and Porsche Boxster (981) S 3.4: 0.3 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
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
7.3 L/100 km
32.2 mpg US
38.7 mpg UK

The biggest fuel consumption difference is between AUDI TTS Roadster (8S) Facelift 2018 2.0 TFSI and Porsche Boxster (981) S 3.4: 1.7 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
235 hp/t
175 kW/t
4.3 kg/hp
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
205 hp/t
153 kW/t
4.9 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
711 km
442 mi
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
616 km
383 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
5.1 s
279 km/h
173 mph
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
306 hp
228 kW
4.8 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/h5.1 s
Top speed
279 km/h
173 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)Facelift 20182.0 TFSI
Power
306 hp
228 kW
0-100 km/h4.8 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
4,199 mm
165.3 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/h5.1 s
Top speed
279 km/h
173 mph
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
Power
306 hp
228 kW
0-100 km/h4.8 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.3 L/100 km
32.2 mpg US
38.7 mpg UK

Porsche Boxster (981) S 3.4 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
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
5.1 s
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
7.3 L/100 km
32.2 mpg US
38.7 mpg UK
4.8 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
235 hp/t
175 kW/t
4.3 kg/hp
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
AUDITTS Roadster (8S)Facelift 20182.0 TFSI
205 hp/t
153 kW/t
4.9 kg/hp
7.3 L/100 km
32.2 mpg US
38.7 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorscheBoxster (981)S 3.4AUDITTS Roadster (8S)Facelift 20182.0 TFSI
Power
315 hp
235 kW
306 hp
228 kW
Torque
360 Nm
266 lb-ft
400 Nm
295 lb-ft
Acceleration
5.1 s
4.8 s
Top speed
279 km/h
173 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,340 kg
2,954 lb
1,495 kg
3,296 lb
Fuel consumption
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
7.3 L/100 km
32.2 mpg US
38.7 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
4,199 mm
165.3 in
Height
1,345 mm
53.0 in
Range score
711 km
442 mi
616 km
383 mi
CO2 score
211 g/km
166 g/km
Trunk score
280 L
9.9 cu ft
280 L
9.9 cu ft
Power-to-weight score
235 hp/t
175 kW/t
4.3 kg/hp
205 hp/t
153 kW/t
4.9 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) Facelift 2018 2.0 TFSI
Consumption9 L/100 km26.1 mpg US31.4 mpg UK7.3 L/100 km32.2 mpg US38.7 mpg UK
Cost / 100 km15.75 LC100 km12.78 LC100 km
Cost / 100 mi25.35 LC100 mi20.56 LC100 mi
Annual fuel used1,350 L357 US gal297 UK gal1,095 L289 US gal241 UK gal
Annual fuel cost2,363 LC/year1,916 LC/year

Head-to-head comparisons

Porsche Boxster (981) S 3.4

  • Has 9 hp more
  • Is 155 kg lighter
  • Has 19 km/h (12 mph) higher top speed
  • Has 30 hp/t better power-to-weight
  • Has 95 km (59 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) Facelift 2018 2.0 TFSI

  • Has 40 Nm more
  • Is 0.3 s quicker from 0-100 km/h
  • Uses 1.7 L/100 km less fuel
  • Emits 45 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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Porsche Boxster (981) S 3.4 vs AUDI TTS Roadster (8S) · Facelift 2018 2.0 TFSI - car comparison - FastVsFaster