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Home›Motorway›Tesla Model 3 vs BMW 420i

Motorway range comparison

Tesla Model 3 Performance vs BMW 420i Gran Coupé G22

Trip mapped at a glance. Charging stops visible, total duration predictable. Caralogy simulation at 130 km/h.

TeslaBEV

Model 3 Performance

510 ch · 78 kWh · 2024

VS
BMWPetrolPlus rapide

420i Gran Coupé G22

184 ch · 2024

MotorwayRange & chargingPerformance0-100, top speedConsumptionAnnual TCO
Simulation trip

Paris → Marseille · 130 km/h · Caralogy simulation

Model 3 Performance420i Gran Coupé G22
Total time7h237h06−17 min
Charging stops3 stops1 stop−2 stops
Total cost50,77 €−69,53 €120,30 €

Visualise the trip

Both vehicles drive at 130 km/h. The difference comes from charging stops.

TeslaBEV
Model 3 Performance
100%
402 km
Range
Paris
0 km · departure
Charge 1
8 min · +31 kWh · 14.04 €
Charge 2
8 min · +31 kWh · 14.04 €
Charge 3
6 min · +23 kWh · 10.57 €
Marseille
775 km · Arrival 7h23
3
Stops
7h23
Duration
50,77 €
Cost
BMWPetrolFastest
420i Gran Coupé G22
100%
681 km
Range
Paris
0 km · departure
Refuel 1
5 min · +53 L · 105.67 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
120,30 €
Cost

Analysis

The 17-minute lead of the 420i Gran Coupé G22 (combustion) comes from not needing a charging stop: 1 stop of 5 min versus 3 stops totalling 22 min for the Model 3 Performance (electric).

Both vehicles drove at 130 km/h for the entire trip. The 420i Gran Coupé G22 (combustion) makes 1 stop of 5 min, the Model 3 Performance (electric) 3 stops totalling 22 min. Road safety reminder: on a trip of this duration, it is recommended to stop for at least 51 min total (17 min every 2h). The energy cost is 50,77 € for Model 3 Performance versus 120,30 € for 420i Gran Coupé G22.

Motorway consumption: the Caralogy methodology

The official WLTP figures (16,7 kWh/100km for Model 3 Performance and 6,5 L/100km for 420i Gran Coupé G22) are measured on a mixed cycle averaging ~46 km/h. At a steady 130 km/h, aerodynamic drag weighs much more heavily - it grows with the square of speed. Caralogy calculates a motorway consumption specific to each vehicle based on its aerodynamic profile (SCx), weight and power curve - not a uniform correction factor. For this trip, the simulation yields 19,4 kWh/100km (Model 3 Performance) and 7,8 L/100km (420i Gran Coupé G22). Full methodology: see the dedicated button above the summary.

What about a 200 km round trip?

On a 200 km round trip (e.g. a weekend getaway), the electric or plug-in hybrid vehicle completes the entire journey on home energy at 0.18 €/kWh - with no charging stop. The time advantage of the combustion car on long-distance motorways disappears entirely, and the economic advantage of electric strengthens considerably.

Energy cost breakdown for your trip Paris → Marseille

The cost per kilometre depends on the electricity rate applied to each segment - based on the energy source used at that point of the trip.

Tesla

Model 3 Performance

SegmentDistance€/kmCost
Paris → Tournus, A6initial energy charged at home · 0,21 €/kWh362 km70 kWh consumed0,041 €/km14,74 €
Tournus, A6 → Valence, A7energy charged at Supercharger 234 kW · 0,45 €/kWh161 km31 kWh consumed0,087 €/km14,04 €
Valence, A7 → Manosque, A51energy charged at Supercharger 234 kW · 0,45 €/kWh161 km31 kWh consumed0,087 €/km14,04 €
Manosque, A51 → Marseilleenergy charged at Supercharger 235 kW · 0,45 €/kWh91 km18 kWh consumed0,087 €/km7,95 €
Trip total50,77 €
BMW

420i Gran Coupé G22

SegmentDistance€/kmCost
Paris → Manosque, A51fuel · 1,99 €/L681 km53 L consumed0,155 €/km105,67 €
Manosque, A51 → Marseillefuel · 1,99 €/L94 km7 L consumed0,156 €/km14,63 €
Trip total120,30 €

Range recovered by stop duration

How many kilometres do you recover depending on the time spent at the charger? Comparison at nominal peak power.

Charging stop durationTesla Model 3 PerformanceBMW 420i Gran Coupé G22
5 minutes~75 km-
10 minutes~150 km-
20 minutes~301 km-
Full session 10 → 80 %~282 km20 min-

Compare with another vehicle

Replace one of the two with an alternative from the same segment

TeslaBEV

Model 3 Performance

510 ch · 78 kWh · 2024

BMWPetrol

420i Gran Coupé G22

184 ch · 2024

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Frequently asked questions

The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the 420i Gran Coupé G22 arrives in 7h06 with 1 charging stop.

WLTP consumption does not reflect motorway reality. Aerodynamic drag grows with the square of speed, so real consumption is 15 to 25 % higher than WLTP combined. Caralogy calculates a highway consumption specific to each vehicle based on its aerodynamic profile (SCx), weight and power curve.

Total time = driving time + charging time. Driving time is calculated at an average speed of 130 km/h on the motorway (adjustable). Charging time is calculated based on the real power curve of each vehicle, respecting the optimal 10 → 80 % range and the maximum power accepted by the chargers on the route.

No. The displayed cost covers only the energy consumed during the trip: kWh × energy rate, with a mix of home charging and DC fast chargers. Battery wear is a long-term ownership cost, not a trip cost.

Electric: 50,77 € (Model 3 Performance) and 120,30 € (420i Gran Coupé G22). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.