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Home›Consumption›Porsche 911 vs Porsche Boxster

Consumption comparison

Porsche 911 Carrera S 991.1 vs Porsche Boxster S 981: how much do I save per year?

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

PorschePetrolMost economical

911 Carrera S 991.1

63.973429 L · 2013

10,7 L/100km

VS
PorschePetrol

Boxster S 981

63.973429 L · 2012

10,7 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

PorschePetrolMost economical

911 Carrera S 991.1

Annual energy cost · 15 000 km

3 227€

21,51 € / 100 km

Equivalent to 1 622 L of petrol 95 per year

Weighted consumption
10,8 L/100km
Fuel price
1,99 €/L
Fuel used
1621,5 L per year
PorschePetrol

Boxster S 981

Annual energy cost · 15 000 km

3 839€

25,59 € / 100 km

Equivalent to 1 929 L of petrol 95 per year

Weighted consumption
12,9 L/100km
Fuel price
1,99 €/L
Fuel used
1928,9 L per year
Annual gap 911 Carrera S vs Boxster S+612 €/an≈ 307 L petrol 95

Porsche 911 Carrera S 991.1 costs 612 €/an less in energy than Porsche Boxster S 981, over 15 000 km for this driving mix.

≈ 307 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

612 €

≈ 307 L petrol 95

3 years

1 835 €

≈ 922 L petrol 95

5 years

3 059 €

≈ 1537 L petrol 95

10 years

6 117 €

≈ 3074 L petrol 95

Cumulative savings for Porsche 911 Carrera S 991.1 versus Porsche Boxster S 981. Excluding purchase, insurance, maintenance and depreciation.

Annual fuel cost breakdown

Projection over 15 000 km/year.

Porsche

911 Carrera S 991.1

Fuelkm/year€/kmAnnual cost
Annual fuel1,99 €/L15 000 km0,215 €/km3 227 €
Porsche

Boxster S 981

Fuelkm/year€/kmAnnual cost
Annual fuel1,99 €/L15 000 km0,256 €/km3 839 €

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Frequently asked questions

On a 100 km mixed trip, the Porsche 911 Carrera S is about 15% cheaper than the Porsche Boxster S with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.

The Porsche 911 Carrera S is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.