On a 100 km mixed trip, the BMW Z4 sDrive30i is about 40% cheaper than the Porsche 911 Targa 4 with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.
What each kilometre costs, depending on your driving profile and how you charge. Annual projection and cumulative savings over 10 years.
3,499 €per year
10,8 L/100 km weighted · 23.33 € per 100 km · 1 613 L per year
| Profile | Split | AA · 911 | BB · Z4 | Gap |
|---|---|---|---|---|
| City70 / 25 / 5 | 70 % city · 25 % road · 5 % motorway | 3,833 € | 2,269 € | 1,564 € · Z4 |
| Mixed30 / 50 / 20 | 30 % city · 50 % road · 20 % motorway | 3,499 € | 2,060 € | 1,439 € · Z4 |
| Long-distance10 / 40 / 50 | 10 % city · 40 % road · 50 % motorway | 3,164 € | 1,898 € | 1,266 € · Z4 |
Cumulative saving for the Z4 sDrive30i
Energy only. Excludes purchase, insurance, servicing, depreciation.
On a 100 km mixed trip, the BMW Z4 sDrive30i is about 40% cheaper than the Porsche 911 Targa 4 with default parameters. This ratio shifts with your actual energy prices - simulate for your profile.
The BMW Z4 sDrive30i is cheaper across all distances with default rates. If your energy prices differ significantly, simulate to see the real impact on your budget.