On a 100 km mixed trip, the BMW M4 Convertible and Porsche Boxster S have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.
Same car, two powertrains. The simulator below calculates the gap based on your mileage and charging type.
3,486 €per year
10,7 L/100 km weighted · 23.24 € per 100 km · 1 607 L per year
| Profile | Split | AA · M4 | BB · Boxster | Gap |
|---|---|---|---|---|
| City70 / 25 / 5 | 70 % city · 25 % road · 5 % motorway | 3,911 € | 3,644 € | 267 € · Boxster |
| Mixed30 / 50 / 20 | 30 % city · 50 % road · 20 % motorway | 3,486 € | 3,327 € | 159 € · Boxster |
| Long-distance10 / 40 / 50 | 10 % city · 40 % road · 50 % motorway | 3,164 € | 3,020 € | 144 € · Boxster |
Cumulative saving for the Boxster S
Energy only. Excludes purchase, insurance, servicing, depreciation.
On a 100 km mixed trip, the BMW M4 Convertible and Porsche Boxster S have a near-identical cost per km with default parameters. The gap becomes significant once you enter your actual energy prices.
The Porsche Boxster S is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.