Porsche 718 Boxster GTS (2017) vs Audi S5 Cabriolet (2017 – 2020): specs compared

The Porsche 718 Boxster GTS is the more powerful of the two, with up to 365 hp against 354 hp. It is quicker, reaching 100 km/h in 4.3 s against 5.1 s. It has the higher top speed: 290 km/h against 249 km/h. The Audi S5 Cabriolet uses less fuel, from 7.8 L/100 km against 8.5 L/100 km. It is the lighter car, from 869 kg against 1,375 kg. At 119,177 mm, the Audi S5 Cabriolet is 114,798 mm longer than the Porsche 718 Boxster GTS.

Specification Porsche 718 Boxster GTS Porsche 718 Boxster GTS 2017 Audi S5 Cabriolet Audi S5 Cabriolet 2017 – 2020
Overview
Origin Germany Germany
Documented years 2017 2017 – 2020
Body style — Convertible
Variants 2 1
Fuel Petrol Petrol
Drive RWD AWD
Gearbox Automatic · Manual Automatic
Performance
Power 365 hp 354 hp
Torque 420 Nm 500 Nm
0–100 km/h 4.3 – 4.6 s 5.1 s
Top speed 290 km/h 249 km/h
Economy
Fuel economy 8.5 – 9.0 L/100 km 7.8 L/100 km
Dimensions
Length 4,379 mm 119,177 mm
Width 1,801 mm 46,888 mm
Height 1,273 mm 35,103 mm
Wheelbase 2,474 mm 70,231 mm
Curb weight 1,375 – 1,405 kg 869 kg

Ranges cover all variants of each car. The highlight marks the best version per row.

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