In our Bern to Sofia EV duel, the smart #1 Pro beats the Renault 4 E-Tech 150 by 30 minutes, completing the 1686km route in 19h 17min. The key advantage? 2 fewer charging stops. Route calculated on July 27, 2026 using real-time charging station data.
The Renault 4 E-Tech 150's 327km range doesn't beat the smart #1 Pro's 240km here - charging speed and efficiency matter more.
The smart #1 Pro needs only 9 charging stops compared to 11 for the slowest vehicle, saving valuable time.
Winner
smart #1 Pro
- Total time: 19h 17min (30 min faster)
- Charging stops: 9
- Charging time: 2h 0min
- Energy: ~330 kWh
- Distance: 1686km
Quick Comparison
| Metric |
Renault 4 E-Tech 150 |
smart #1 Pro |
| Travel time |
19h 47min |
19h 17min |
| Charging time: |
2h 32min |
2h 0min |
| Charging stops: |
11 |
9 |
| Energy used |
~303 kWh |
~303 kWh |
Charging Strategy Breakdown
Renault 4 E-Tech 150 Route
- Start: Bern (100% charge)
-
Stop 1:
Lambro Sud (10 min, 15% → 46%)
-
Stop 2:
Monte Alto Sud (10 min, 11% → 42%)
-
Stop 3:
Tesina Sud (14 min, 14% → 56%)
-
Stop 4:
Smatrics Risparmio Casa (10 min, 10% → 43%)
-
Stop 5:
Lom east (Koper - Ljubljana) (11 min, 10% → 28%)
-
Stop 6:
Petrol (12 min, 10% → 48%)
-
Stop 7:
Supercharger Designer Outlet Croatia (20 min, 10% → 66%)
-
Stop 8:
Tesla Supercharger (11 min, 10% → 45%)
-
Stop 9:
OMV Martinci (10 min, 10% → 43%)
-
Stop 10:
JP Putevi Srbije (24 min, 10% → 73%)
-
Stop 11:
Naplatna rampa Nais zapadno (20 min, 10% → 61%)
- Arrival: Sofia
smart #1 Pro Route
- Start: Bern (100% charge)
-
Stop 1:
Lambro Sud (10 min, 17% → 55%)
-
Stop 2:
Monte Alto Sud (11 min, 21% → 62%)
-
Stop 3:
Supercharger Omnia Hotel (13 min, 10% → 62%)
-
Stop 4:
Lom east (Koper - Ljubljana) (10 min, 10% → 27%)
-
Stop 5:
Petrol (10 min, 10% → 50%)
-
Stop 6:
Supercharger Designer Outlet Croatia (13 min, 13% → 64%)
-
Stop 7:
Tesla Supercharger (19 min, 10% → 76%)
-
Stop 8:
JP Putevi Srbije (17 min, 10% → 72%)
-
Stop 9:
Naplatna rampa Nais zapadno (17 min, 10% → 60%)
- Arrival: Sofia
Why the smart #1 Pro Won
The smart #1 Pro achieved a 30-minute advantage over Renault 4 E-Tech 150 on this 1686km route. Key factors:
- Fewer charging stops: 9 stops vs 11 for the slowest vehicle means less time spent finding and connecting to chargers.
- Faster charging: Total charging time of 2h 0min vs 2h 32min thanks to higher peak charging speeds or better charging curve.
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