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Home›Consumption›BMW M8 vs BMW M850i

Consumption comparison

BMW M8 Competition Convertible F92 vs BMW M850i xDrive Convertible G15: how much do I save per year?

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

BMWPetrol

M8 Competition Convertible F92

68 L · 2021

11,4 L/100km

VS
BMWPetrolMost economical

M850i xDrive Convertible G15

68 L · 2021

10,1 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

BMWPetrol

M8 Competition Convertible F92

Annual energy cost · 15 000 km

3 704€

24,70 € / 100 km

Equivalent to 1 862 L of petrol 95 per year

Weighted consumption
12,4 L/100km
Fuel price
1,99 €/L
Fuel used
1861,5 L per year
BMWPetrolMost economical

M850i xDrive Convertible G15

Annual energy cost · 15 000 km

3 239€

21,59 € / 100 km

Equivalent to 1 627 L of petrol 95 per year

Weighted consumption
10,8 L/100km
Fuel price
1,99 €/L
Fuel used
1627,5 L per year
Annual gap M850i xDrive Convertible vs M8 Competition Convertible+466 €/an≈ 234 L petrol 95

BMW M850i xDrive Convertible G15 costs 466 €/an less in energy than BMW M8 Competition Convertible F92, over 15 000 km for this driving mix.

≈ 234 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

466 €

≈ 234 L petrol 95

3 years

1 397 €

≈ 702 L petrol 95

5 years

2 328 €

≈ 1170 L petrol 95

10 years

4 657 €

≈ 2340 L petrol 95

Cumulative savings for BMW M850i xDrive Convertible G15 versus BMW M8 Competition Convertible F92. Excluding purchase, insurance, maintenance and depreciation.

Annual fuel cost breakdown

Projection over 15 000 km/year.

BMW

M8 Competition Convertible F92

Fuelkm/year€/kmAnnual cost
Annual fuel1,99 €/L15 000 km0,247 €/km3 704 €
BMW

M850i xDrive Convertible G15

Fuelkm/year€/kmAnnual cost
Annual fuel1,99 €/L15 000 km0,216 €/km3 239 €

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Frequently asked questions

On a 100 km mixed trip, the BMW M850i xDrive Convertible is about 10% cheaper than the BMW M8 Competition Convertible with default parameters. This ratio shifts with your actual energy prices — simulate for your profile.

The BMW M850i xDrive Convertible is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.