Run a real route. The EV does not always win.
Worked example: Berlin to Munich on the A9, 585 km. A Model 3 Long Range against a 7.3 L/100 km petrol car, on live Supercharger prices.
One charge does not cover this trip, and it does not need to.
75 kWh usable at 20.5 kWh/100 km on the motorway. The dashed circle on the map.
Berlin to Munich along the A9.
Reality: The trip runs past a single charge, so it splits into legs of 270, 149, 166 km. Two stops, about 35 minutes plugged in. That is the whole of the range problem on this route.
16 Supercharger sites sit on this one corridor.
Supercharger locations on the corridor
Every one of them rated 250 kW
The rest are spare capacity
Reality: Density is not the constraint on a corridor like this. Having more sites than it needs is what lets the planner choose on price, and what makes a missed stop recoverable.
Two stops, 35 minutes plugged in, on a five-and-a-half hour drive.
Reality: 30 minutes. That is the honest gap on this route, and both stops land where you would want a break anyway.
Same route, same day. Electricity against petrol.
Savings: €47.52 on 585 km, 51% cheaper. The Superchargers are priced live, so the planner charges where the kWh is cheap rather than wherever you happen to stop.
The planner weighs all 16 sites and commits to 2.
Reality: The small markers are the 14 sites the planner passed by, several of them charging €0.72/kWh. It waits for Schleiz at €0.62 and Feucht at €0.32, which is what pulls the blended rate down to €0.46. Picking stops is the whole job.
Pick your cars and your cities, and get the same breakdown.
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