BMW 420d Coupé Steptronic vs BMW 420i Coupé Steptronic
At 15,000 km a year and typical prices, the BMW 420d Coupé Steptronic costs about €1,621 a year in energy against €1,931 for the BMW 420i Coupé Steptronic, a difference of €309. Official WLTP figures: 5.3 l/100 km against 6.6 l/100 km combined.
Both are variants of the BMW 4 Series; the choice is the powertrain.
| Figure | BMW 420d Coupé Steptronic | BMW 420i Coupé Steptronic |
|---|---|---|
| Motor | Diesel | Petrol |
| Power | 190 PS | 184 PS |
| Combined | 5.3 l/100 km | 6.6 l/100 km |
| City | 6.7 l/100 km | 9.1 l/100 km |
| Suburban | 5.1 l/100 km | 6.7 l/100 km |
| Country road | 4.8 l/100 km | 6.7 l/100 km |
| Motorway | 5.5 l/100 km | 6.3 l/100 km |
| CO₂ | 126.0 g/km | 143.0 g/km |
| Electric range | - | - |
| Energy cost per year at 15,000 km | €1,621 | €1,931 |