BMW i8 Coupe I12 vs Porsche 718 Cayman GTS PDK: which one uses less fuel?

Plug-in hybrid vs electric: the cost depends on your usage profile. Select your scenario below.

sports car · 2018 vs 2018 · 15,000 km/an · Mixed · Petrol 95 2.03 €/L · Home 0.20 €/kWh · Methodology

Annual mileage

15,000 km

5,000 km50,000 km

Driving mix

30 % City · 50 % Road · 20 % Motorway

Fuel price

Petrol 95 2.03 €/L · Diesel 2.25 €/Lprix-carburants.gouv.fr — moyenne nationale du 25/08/2026 ; EDF Tarif Bleu Base au 01/08/2026 ; DC autoroute : moyenne des réseaux sans abonnement

Charging type

Result · yearly energy cost

ABMW i8 Coupe I12

Comparison unavailable - manufacturer data being validated.

GapComparison unavailable - manufacturer data being validated.

BPorsche 718 Cayman GTS PDK

4,013 €per year

13,2 L/100 km weighted · 26.75 € per 100 km · 1 974 L per year

What produces these figures

WLTP combined: 100.0 kWh/100 km · 10.7 L/100 km
Powertrain: Plug-in hybrid · Combustion
Power: 374 ch · 365 ch
Kerb weight: 1,535 kg · 1,405 kg

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Frequently asked questions

What is the range of the BMW i8 Coupe vs the Porsche 718 Cayman GTS PDK?

The declared range of the BMW i8 Coupe is 55 km (WLTP/EPA). In real-world conditions, expect 10-20% less.

Result · yearly energy cost

What produces these figures

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