On a 100 km mixed trip, the BMW 840i is about 40% cheaper than the Porsche 911 Turbo S with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.
Same car, two powertrains. The simulator below calculates the gap based on your mileage and charging type.
3,760 €per year
12,3 L/100 km weighted · 25.07 € per 100 km · 1 850 L per year
| Profile | Split | 911 | 840i | Gap |
|---|---|---|---|---|
| City | 70 % city · 25 % road · 5 % motorway | 4,201 € | 2,574 € | 1,627 € · 840i |
| Mixed | 30 % city · 50 % road · 20 % motorway | 3,760 € | 2,321 € | 1,440 € · 840i |
| Long-distance | 10 % city · 40 % road · 50 % motorway | 3,418 € | 2,126 € | 1,293 € · 840i |
Cumulative saving for the 840i
Energy only. Excludes purchase, insurance, servicing, depreciation.
On a 100 km mixed trip, the BMW 840i is about 40% cheaper than the Porsche 911 Turbo S with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.
The BMW 840i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.