Car comparison

Porsche 718 Boxster (982) S 2.5vsAUDI S5 Cabriolet (F5) 3.0 TFSI V6

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

New comparison

Porsche 718 Boxster (982)

S 2.5

350 hp2497 ccGasolineRWDManualTurbochargedCabriolet / convertible2016-2018
VS

AUDI S5 Cabriolet (F5)

3.0 TFSI V6

354 hp2995 ccGasolineAWDAutomaticTurbochargedCabriolet / convertible2016-2018

Comparison overview

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

Best choices

AUDI S5 Cabriolet (F5) 3.0 TFSI V6

  • Most powerful
    354 hp
    264 kW
  • Highest torque
    500 Nm
    369 lb-ft
  • Lowest combined fuel consumption
    7.8 L/100 km
    30.2 mpg US
    36.2 mpg UK
  • Lowest city consumption
    10.3 L/100 km
    22.8 mpg US
    27.4 mpg UK
  • Lowest highway consumption
    6.4 L/100 km
    36.8 mpg US
    44.1 mpg UK
  • Lowest CO2 emissions
    177 g/km
  • Largest trunk
    320 L
  • Best overall score
    62/100
  • Best economy score
    86/100
  • Best practicality score
    46/100

Porsche 718 Boxster (982) S 2.5

  • Quickest 0-100 km/h
    4.6 s
  • Fastest top speed
    285 km/h
    177 mph
  • Lightest
    1,355 kg
    2,987 lb
  • Best power-to-weight
    258 hp/t
    193 kW/t
    3.9 kg/hp
  • Best performance score
    74/100

Specification comparison

Specification comparison
ModelPorsche718 Boxster (982)S 2.5AUDIS5 Cabriolet (F5)3.0 TFSI V6
Power
350hp261kW
354hp264kW
Torque
420Nm310lb-ft
500Nm369lb-ft
Curb weight
1,355kg2,987lb
1,840kg4,057lb
Gross weight
1,665kg3,671lb
2,340kg5,159lb
Top speed
285 km/h
177 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
61.6s99% target: 282 km/h / 175 mph
Calculated
72.2s99% target: 257 km/h / 160 mph
Calculated
0-100 km/h
4.6s
5.1s
0-200 km/h
14.2s
Calculated
18.8s
Calculated
0-60 mph
4.4s
Calculated
4.8s
Calculated
Fuel consumption
8.1L/100 km29mpg US34.9mpg UK
7.8L/100 km30.2mpg US36.2mpg UK
Fuel consumption city
10.7L/100 km22mpg US26.4mpg UK
10.3L/100 km22.8mpg US27.4mpg UK
Fuel consumption highway
6.5L/100 km36.2mpg US43.5mpg UK
6.4L/100 km36.8mpg US44.1mpg UK
Quarter mile
12.6s
Calculated
13.3s
Calculated
Power-to-weight
258hp/t193kW/t117hp/1000 lb
Calculated
192hp/t143kW/t87hp/1000 lb
Calculated
Torque-to-weight
310Nm/t207lb-ft/ton
Calculated
272Nm/t182lb-ft/ton
Calculated
Estimated range
790km491mi
Calculated
-
Displacement
2,497cc152cu in
2,995cc183cu in
Length
4,379mm172in
4,692mm185in
Width
1,801mm71in
1,846mm73in
Height
1,280mm50in
1,382mm54in
Wheelbase
2,475mm97in
2,765mm109in
Front track
1,515mm60in
1,587mm62in
Rear track
1,540mm61in
1,568mm62in
Trunk volume
275L
320L
Max trunk volume-
380L
Doors
2
2
Seats
2
4
Fuel tank
64L
-
CO2 emissions
184g/km
177g/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 718 Boxster (982) S 2.5AUDI S5 Cabriolet (F5) 3.0 TFSI V6PowerTorque
  • Porsche 718 Boxster (982) S 2.5: Power / Torque
  • AUDI S5 Cabriolet (F5) 3.0 TFSI V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Porsche718 Boxster (982)S 2.56,500 rpm1,900-4,500 rpm6,750 rpm
AUDIS5 Cabriolet (F5)3.0 TFSI V65,400-6,400 rpm1,370-4,500 rpm6,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricPorsche718 Boxster (982)S 2.5AUDIS5 Cabriolet (F5)3.0 TFSI V6
Acceleration checkpoints
0-60 mph
0-97 km/h
4.4 s
4.8 s
0-100 km/h
0-62 mph
4.6 s
5.1 s
0-200 km/h
0-124 mph
14.2 s
18.8 s
Top speed
285 km/h
177 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Likely limited
Drag race simulation
60 ft
18 m
2.2 s
2.2 s
330 ft
101 m
5.6 s
5.7 s
1/8 mile
201 m
8.3 s
8.6 s
1000 ft
305 m
10.6 s
11.2 s
1/4 mile
402 m
12.6 s
13.3 s
Trap speed
1/4 mile
402 m
188 km/h
117 mph
173 km/h
107 mph

Power comparison

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

Chart data table
VehicleValue
Porsche718 Boxster (982)S 2.5
350 hp
261 kW
AUDIS5 Cabriolet (F5)3.0 TFSI V6
354 hp
264 kW

AUDI S5 Cabriolet (F5) 3.0 TFSI V6 has 4 hp more than Porsche 718 Boxster (982) S 2.5.

The biggest power difference is between Porsche 718 Boxster (982) S 2.5 and AUDI S5 Cabriolet (F5) 3.0 TFSI V6: 4 hp (3 kW).

Torque comparison

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

Chart data table
VehicleValue
Porsche718 Boxster (982)S 2.5
420 Nm
310 lb-ft
AUDIS5 Cabriolet (F5)3.0 TFSI V6
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Porsche718 Boxster (982)S 2.5
1,355 kg
2,987 lb
AUDIS5 Cabriolet (F5)3.0 TFSI V6
1,840 kg
4,057 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
Porsche718 Boxster (982)S 2.5
285 km/h
177 mph
AUDIS5 Cabriolet (F5)3.0 TFSI V6
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
Porsche718 Boxster (982)S 2.54.6 s
AUDIS5 Cabriolet (F5)3.0 TFSI V65.1 s

Although AUDI S5 Cabriolet (F5) 3.0 TFSI V6 has more power, Porsche 718 Boxster (982) S 2.5 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Porsche 718 Boxster (982) S 2.5 and AUDI S5 Cabriolet (F5) 3.0 TFSI V6: 0.5 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
Porsche718 Boxster (982)S 2.5
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
AUDIS5 Cabriolet (F5)3.0 TFSI V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Power-to-weight comparison

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

Chart data table
VehicleValue
Porsche718 Boxster (982)S 2.5
258 hp/t
193 kW/t
3.9 kg/hp
AUDIS5 Cabriolet (F5)3.0 TFSI V6
192 hp/t
143 kW/t
5.2 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Porsche718 Boxster (982)S 2.5
350 hp
261 kW
4.6 s
285 km/h
177 mph
AUDIS5 Cabriolet (F5)3.0 TFSI V6
354 hp
264 kW
5.1 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
Porsche718 Boxster (982)S 2.5
Power
350 hp
261 kW
0-100 km/h4.6 s
Top speed
285 km/h
177 mph
Doors/seats
2 doors
2 seats
Trunk
275 L
9.7 cu ft
Length
4,379 mm
172.4 in
Height
1,280 mm
50.4 in
AUDIS5 Cabriolet (F5)3.0 TFSI V6
Power
354 hp
264 kW
0-100 km/h5.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
4 seats
Trunk
320 L
11.3 cu ft
Length
4,692 mm
184.7 in
Height
1,382 mm
54.4 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
Porsche718 Boxster (982)S 2.5
Power
350 hp
261 kW
0-100 km/h4.6 s
Top speed
285 km/h
177 mph
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
AUDIS5 Cabriolet (F5)3.0 TFSI V6
Power
354 hp
264 kW
0-100 km/h5.1 s
Top speed
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Porsche 718 Boxster (982) S 2.5 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
Porsche718 Boxster (982)S 2.5
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
4.6 s
AUDIS5 Cabriolet (F5)3.0 TFSI V6
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
5.1 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
Porsche718 Boxster (982)S 2.5
258 hp/t
193 kW/t
3.9 kg/hp
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
AUDIS5 Cabriolet (F5)3.0 TFSI V6
192 hp/t
143 kW/t
5.2 kg/hp
7.8 L/100 km
30.2 mpg US
36.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehiclePorsche718 Boxster (982)S 2.5AUDIS5 Cabriolet (F5)3.0 TFSI V6
Power
350 hp
261 kW
354 hp
264 kW
Torque
420 Nm
310 lb-ft
500 Nm
369 lb-ft
Acceleration
4.6 s
5.1 s
Top speed
285 km/h
177 mph
Unrestricted
260 km/h162 mph
Restricted
250 km/h155 mph
Lightness
1,355 kg
2,987 lb
1,840 kg
4,057 lb
Fuel consumption
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
7.8 L/100 km
30.2 mpg US
36.2 mpg UK
Practicality
Doors/seats
2 doors
2 seats
Trunk
275 L
9.7 cu ft
Length
4,379 mm
172.4 in
Height
1,280 mm
50.4 in
Doors/seats
2 doors
4 seats
Trunk
320 L
11.3 cu ft
Length
4,692 mm
184.7 in
Height
1,382 mm
54.4 in
Range score
790 km
491 mi
-
CO2 score
184 g/km
177 g/km
Trunk score
275 L
9.7 cu ft
320 L
11.3 cu ft
Power-to-weight score
258 hp/t
193 kW/t
3.9 kg/hp
192 hp/t
143 kW/t
5.2 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 718 Boxster (982) S 2.5AUDI S5 Cabriolet (F5) 3.0 TFSI V6
Consumption8.1 L/100 km29 mpg US34.9 mpg UK7.8 L/100 km30.2 mpg US36.2 mpg UK
Cost / 100 km14.17 LC100 km13.65 LC100 km
Cost / 100 mi22.81 LC100 mi21.97 LC100 mi
Annual fuel used1,215 L321 US gal267 UK gal1,170 L309 US gal257 UK gal
Annual fuel cost2,126 LC/year2,048 LC/year

Head-to-head comparisons

Porsche 718 Boxster (982) S 2.5

  • Is 485 kg lighter
  • Is 0.5 s quicker from 0-100 km/h
  • Has 25 km/h (16 mph) higher top speed
  • Has 66 hp/t better power-to-weight

Pros

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

Cons

  • Lowest power
  • Highest combined fuel consumption
  • Smallest trunk
  • Highest CO2 emissions

AUDI S5 Cabriolet (F5) 3.0 TFSI V6

  • Has 4 hp more
  • Has 80 Nm more
  • Uses 0.3 L/100 km less fuel
  • Has 45 L more trunk volume
  • Emits 7 g/km less CO2

Pros

  • Most powerful
  • Highest torque
  • Lowest combined fuel consumption
  • Largest trunk

Cons

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

Choose cars to compare

Brand
Model
Generation
Engine or modification
Porsche 718 Boxster (982) S 2.5
AUDI S5 Cabriolet (F5) 3.0 TFSI V6
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2 vehicles selected

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