BMW i8 (2018 – 2020) vs Porsche 911 Carrera 4S (2018 – 2025): specs compared

The Porsche 911 Carrera 4S is the more powerful of the two, with up to 450 hp against 374 hp. It is quicker, reaching 100 km/h in 3.4 s against 4.4 s. It has the higher top speed: 307 km/h against 249 km/h. It is the lighter car, from 1,565 kg against 1,610 kg. At 4,689 mm, the BMW i8 is 170 mm longer than the Porsche 911 Carrera 4S.

Specification BMW i8 BMW i8 2018 – 2020 Porsche 911 Carrera 4S Porsche 911 Carrera 4S 2018 – 2025
Overview
Origin Germany Germany
Documented years 2018 – 2020 2018 – 2025
Body style — —
Variants 1 1
Fuel Hybrid Petrol
Drive AWD AWD
Gearbox Automatic Automatic
Performance
Power 231 hp 450 hp
Torque 320 Nm 530 Nm
0–100 km/h 4.4 s 3.4 s
Top speed 249 km/h 307 km/h
Economy
Fuel economy 1.9 L/100 km 9.0 L/100 km
Dimensions
Length 4,689 mm 4,519 mm
Width 1,943 mm 2,024 mm
Height 1,293 mm 1,300 mm
Wheelbase 2,799 mm 2,451 mm
Curb weight 1,610 kg 1,565 kg

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

More comparisons

Add more cars to this comparison