Car comparison

Porsche Boxster (981) Spyder 3.8vsAUDI 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)

Spyder 3.8

375 hp3800 ccGasolineRWDManualNaturally aspiratedRoadster2015-2016
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

Porsche Boxster (981) Spyder 3.8

  • Quickest 0-100 km/h
    4.5 s
  • Fastest top speed
    300 km/h
    186 mph Unrestricted
    290 km/h
    180 mph Restricted
  • Most powerful
    375 hp
    280 kW
  • Highest torque
    420 Nm
    310 lb-ft
  • 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

AUDI TTS Roadster (8S) 2.0 TFSI

  • 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
  • Best estimated range
    775 km
    481 mi
  • Best economy score
    88/100
  • Best practicality score
    32/100

Specification comparison

Specification comparison
ModelPorscheBoxster (981)Spyder 3.8AUDITTS Roadster (8S)2.0 TFSI
Power
375hp280kW
310hp231kW
Torque
420Nm310lb-ft
380Nm280lb-ft
Curb weight
1,315kg2,899lb
1,470kg3,241lb
Gross weight
1,650kg3,638lb
1,790kg3,946lb
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Calculated
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
61.8s99% target: 297 km/h / 185 mph
Calculated
61.7s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.5s
4.9s
0-200 km/h
13.2s
Calculated
17.0s
Calculated
0-60 mph
4.3s
Calculated
4.7s
Calculated
Fuel consumption
9.9L/100 km23.8mpg US28.5mpg UK
7.1L/100 km33.1mpg US39.8mpg UK
Fuel consumption city
14.2L/100 km16.6mpg US19.9mpg UK
8.6L/100 km27.4mpg US32.8mpg UK
Fuel consumption highway
7.5L/100 km31.4mpg US37.7mpg UK
6.2L/100 km37.9mpg US45.6mpg UK
Quarter mile
12.4s
Calculated
13.0s
Calculated
Power-to-weight
285hp/t213kW/t129hp/1000 lb
Calculated
211hp/t157kW/t96hp/1000 lb
Calculated
Torque-to-weight
319Nm/t214lb-ft/ton
Calculated
259Nm/t173lb-ft/ton
Calculated
Estimated range
545km339mi
Calculated
775km481mi
Calculated
Displacement
3,800cc232cu in
1,984cc121cu in
Length
4,414mm174in
4,191mm165in
Width
1,801mm71in
1,832mm72in
Height
1,262mm50in
1,345mm53in
Wheelbase
2,475mm97in
2,505mm99in
Front track
1,526mm60in
1,574mm62in
Rear track
1,540mm61in
1,553mm61in
Ground clearance
106mm4in
-
Trunk volume
280L
280L
Doors
2
2
Seats
2
2
Fuel tank
54L
55L
CO2 emissions-
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) Spyder 3.8AUDI TTS Roadster (8S) 2.0 TFSIPowerTorque
  • Porsche Boxster (981) Spyder 3.8: Power / Torque
  • AUDI TTS Roadster (8S) 2.0 TFSI: 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
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)Spyder 3.8AUDITTS Roadster (8S)2.0 TFSI
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
4.7 s
0-100 km/h
0-62 mph
4.5 s
4.9 s
0-200 km/h
0-124 mph
13.2 s
17.0 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Likely limited
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
5.5 s
5.7 s
1/8 mile
201 m
8.2 s
8.5 s
1000 ft
305 m
10.5 s
11.0 s
1/4 mile
402 m
12.4 s
13.0 s
Trap speed
1/4 mile
402 m
194 km/h
120 mph
178 km/h
111 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
AUDITTS Roadster (8S)2.0 TFSI
310 hp
231 kW

Porsche Boxster (981) Spyder 3.8 has 65 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) Spyder 3.8: 65 hp (48 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
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)Spyder 3.8
1,315 kg
2,899 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)Spyder 3.8
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 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)Spyder 3.84.5 s
AUDITTS Roadster (8S)2.0 TFSI4.9 s

The biggest 0-100 km/h difference is between Porsche Boxster (981) Spyder 3.8 and AUDI TTS Roadster (8S) 2.0 TFSI: 0.4 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
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) Spyder 3.8: 2.8 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
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)Spyder 3.8
545 km
339 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)Spyder 3.8
375 hp
280 kW
4.5 s
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 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)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
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)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
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

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
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)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
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)Spyder 3.8AUDITTS Roadster (8S)2.0 TFSI
Power
375 hp
280 kW
310 hp
231 kW
Torque
420 Nm
310 lb-ft
380 Nm
280 lb-ft
Acceleration
4.5 s
4.9 s
Top speed
Unrestricted
300 km/h186 mph
Restricted
290 km/h180 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,315 kg
2,899 lb
1,470 kg
3,241 lb
Fuel consumption
9.9 L/100 km
23.8 mpg US
28.5 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
4,414 mm
173.8 in
Height
1,262 mm
49.7 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
545 km
339 mi
775 km
481 mi
CO2 score
-
163 g/km
Trunk score
280 L
9.9 cu ft
280 L
9.9 cu ft
Power-to-weight score
285 hp/t
213 kW/t
3.5 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) Spyder 3.8AUDI TTS Roadster (8S) 2.0 TFSI
Consumption9.9 L/100 km23.8 mpg US28.5 mpg UK7.1 L/100 km33.1 mpg US39.8 mpg UK
Cost / 100 km17.33 LC100 km12.42 LC100 km
Cost / 100 mi27.88 LC100 mi20.00 LC100 mi
Annual fuel used1,485 L392 US gal327 UK gal1,065 L281 US gal234 UK gal
Annual fuel cost2,599 LC/year1,864 LC/year

Head-to-head comparisons

Porsche Boxster (981) Spyder 3.8

  • Has 65 hp more
  • Has 40 Nm more
  • Is 155 kg lighter
  • Is 0.4 s quicker from 0-100 km/h
  • Has 40 km/h (25 mph) higher top speed
  • Has 74 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Most powerful
  • Highest torque
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Highest combined fuel consumption

AUDI TTS Roadster (8S) 2.0 TFSI

  • Uses 2.8 L/100 km less fuel
  • Has 229 km (142 mi) more estimated range

Pros

  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche Boxster (981) Spyder 3.8
AUDI TTS Roadster (8S) 2.0 TFSI
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