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Home›Consumption›Porsche 911 vs Porsche 718

Consumption comparison

Porsche 911 Carrera T PDK 991.2 vs Porsche 718 Cayman: how much do I save per year?

Same car, two powertrains. The simulator below calculates the gap based on your mileage and charging type.

PorschePetrol

911 Carrera T PDK 991.2

64 L · 2018

10,7 L/100km

VS
PorschePetrolMost economical

718 Cayman

54.131363 L · 2018

9,8 L/100km

MotorwayRange & chargingPerformance0-100, top speedConsumptionAnnual TCO

Annual mileage

15 000 km/an

5 000 km50 000 km

Simulated driving mix

Drag anywhere on the bar to adjust

Fuel price

Petrol 95 : 1,99 €/L·Diesel : 1,75 €/L

Annual energy cost · 15 000 km

Typical annual usage : Mix 30% city / 50% road / 20% motorway

PorschePetrol

911 Carrera T PDK 991.2

Annual energy cost · 15 000 km

3 928€

26,19 € / 100 km

Equivalent to 1 974 L of petrol 95 per year

Weighted consumption
13,2 L/100km
Fuel price
1,99 €/L
Fuel used
1973,9 L per year
PorschePetrolMost economical

718 Cayman

Annual energy cost · 15 000 km

2 967€

19,78 € / 100 km

Equivalent to 1 491 L of petrol 95 per year

Weighted consumption
9,9 L/100km
Fuel price
1,99 €/L
Fuel used
1491,0 L per year
Annual gap 718 Cayman vs 911 Carrera T PDK+961 €/an≈ 483 L petrol 95

Porsche 718 Cayman costs 961 €/an less in energy than Porsche 911 Carrera T PDK 991.2, over 15 000 km for this driving mix.

≈ 483 L of petrol 95 saved per year

Your savings over the ownership period

Cumulative projection by annual mileage. The cheaper-to-run vehicle widens the gap year after year.

Annual mileage

15 000 km/an

1 year

961 €

≈ 483 L petrol 95

3 years

2 883 €

≈ 1449 L petrol 95

5 years

4 804 €

≈ 2414 L petrol 95

10 years

9 609 €

≈ 4829 L petrol 95

Cumulative savings for Porsche 718 Cayman versus Porsche 911 Carrera T PDK 991.2. Excluding purchase, insurance, maintenance and depreciation.

Annual fuel cost breakdown

Projection over 15 000 km/year.

Porsche

911 Carrera T PDK 991.2

Fuelkm/year€/kmAnnual cost
Annual fuel1,99 €/L15 000 km0,262 €/km3 928 €
Porsche

718 Cayman

Fuelkm/year€/kmAnnual cost
Annual fuel1,99 €/L15 000 km0,198 €/km2 967 €

Frequently asked questions

On a 100 km mixed trip, the Porsche 718 Cayman is about 10% cheaper than the Porsche 911 Carrera T PDK with default parameters. This ratio shifts with your actual energy prices — simulate for your profile.

The Porsche 718 Cayman is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.