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Home›Consumption›BMW 840i vs Porsche Panamera

Consumption comparison

BMW 840i Gran Coupe G15 vs Porsche Panamera 970.1: how much do I save per year?

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

BMWPetrolMost economical

840i Gran Coupe G15

68 L · 2021

7,4 L/100km

VS
PorschePetrol

Panamera 970.1

79.872151 L · 2011

11,1 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

BMWPetrolMost economical

840i Gran Coupe G15

Annual energy cost · 15 000 km

2 337€

15,58 € / 100 km

Equivalent to 1 175 L of petrol 95 per year

Weighted consumption
7,8 L/100km
Fuel price
1,99 €/L
Fuel used
1174,5 L per year
PorschePetrol

Panamera 970.1

Annual energy cost · 15 000 km

3 834€

25,56 € / 100 km

Equivalent to 1 927 L of petrol 95 per year

Weighted consumption
12,8 L/100km
Fuel price
1,99 €/L
Fuel used
1926,6 L per year
Annual gap 840i Gran Coupe vs Panamera+1 497 €/an≈ 752 L petrol 95

BMW 840i Gran Coupe G15 costs 1 497 €/an less in energy than Porsche Panamera 970.1, over 15 000 km for this driving mix.

≈ 752 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

1 497 €

≈ 752 L petrol 95

3 years

4 490 €

≈ 2256 L petrol 95

5 years

7 483 €

≈ 3760 L petrol 95

10 years

14 966 €

≈ 7521 L petrol 95

Cumulative savings for BMW 840i Gran Coupe G15 versus Porsche Panamera 970.1. Excluding purchase, insurance, maintenance and depreciation.

Annual fuel cost breakdown

Projection over 15 000 km/year.

BMW

840i Gran Coupe G15

Fuelkm/year€/kmAnnual cost
Annual fuel1,99 €/L15 000 km0,156 €/km2 337 €
Porsche

Panamera 970.1

Fuelkm/year€/kmAnnual cost
Annual fuel1,99 €/L15 000 km0,256 €/km3 834 €

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Frequently asked questions

On a 100 km mixed trip, the BMW 840i Gran Coupe is about 35% cheaper than the Porsche Panamera with default parameters. This ratio shifts with your actual energy prices — simulate for your profile.

The BMW 840i Gran Coupe is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.