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Tesla Model S P85D vs BMW iX xDrive50 I20

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

grand tourer · 2014 vs 2023 · Paris → Marseille · 775 km · 130 km/h
TeslaBEV

Model S P85D

691 ch · 77.5 kWh · 2014

VS
BMWBEVPlus rapide

iX xDrive50 I20

523 ch · 105.2 kWh · 2023

Simulation trip
Assumptions: 130 km/h · start 100 % · mild weather

Result · total trip time

ATesla Model S P85D

8h02charging included

4 stops · 79.10 €

Gap26 minin favour of iX xDrive50
BBMW iX xDrive50 I20

7h36charging included

2 stops · 76.06 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasureModel S P85DiX xDrive50 I20Gap
Total time8h027h3626 min · iX xDrive50 I20
Charging stops4 stops2 stops2 stops · iX xDrive50 I20
Cost of energy used79.10 €76.06 €3.04 € · iX xDrive50 I20

Visualise the trip

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

TeslaBEV
Model S P85D
100%
337 km
Range
Paris
0 km · departure
Charge 1
16 min · +31 kWh · 18.60 €
Charge 2
16 min · +31 kWh · 18.60 €
Charge 3
16 min · +31 kWh · 18.60 €
Charge 4
12 min · +22 kWh · 13.49 €
Marseille
775 km · Arrival 8h02
4
Stops
8h02
Duration
79.10 €
Cost of energy used
BMWBEVFastest
iX xDrive50 I20
100%
429 km
Range
Paris
0 km · departure
Charge 1
14 min · +42 kWh · 25.25 €
Charge 2
22 min · +60 kWh · 36.28 €
Marseille
775 km · Arrival 7h36
2
Stops
7h36
Duration
76.06 €
Cost of energy used

The 26-minute lead of the iX xDrive50 I20 does not come from driving speed, but from 2 fewer charging stops on this route (2 vs 4).

Both vehicles drove at 130 km/h for the entire trip. The gap is built at the stops: 2 stops totalling 35 min for the iX xDrive50 I20 versus 4 stops totalling 61 min for the Model S P85D.

Motorway consumption: the Caralogy methodology

The official WLTP figures (22,5 kWh/100km for Model S P85D and 21,1 kWh/100km for iX xDrive50 I20) 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 23,0 kWh/100km (Model S P85D) and 24,5 kWh/100km (iX xDrive50 I20). Full methodology: see the assumptions below the controls.

Recovery speed: 12,0 km/min versus 8,2 km/min

During the 35 minutes of charging for the iX xDrive50 I20, range recovers by 419 km. During the 61 cumulative minutes for the Model S P85D, range recovers by 502 km. Per minute: the iX xDrive50 I20 recovers 1,5× faster. The gap is less pronounced but accumulates over long distances.

For reference: how much would an equivalent petrol car cost?

A BMW 530i (equivalent segment) consumes about 8,0 L/100km on the motorway at 130 km/h. At 1,9 €/L, this Paris → Marseille trip would cost ~115 €. That is 1,5× the electric cost of the Model S P85D and 1,5× that of the iX xDrive50 I20. The gap narrows in winter but never reverses.

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 S P85D

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Tournus, A6initial energy charged at home · 0.20 €/kWh303 km70 kWh consumed0.046 €/km13.96 €
Tournus, A6 → Limonest, A6energy charged at Supercharger 116 kW · 0.60 €/kWh135 km31 kWh consumed0.138 €/km18.60 €
Limonest, A6 → Montélimar, A7energy charged at Supercharger 116 kW · 0.60 €/kWh135 km31 kWh consumed0.138 €/km18.60 €
Montélimar, A7 → Manosque, A51energy charged at Supercharger 116 kW · 0.60 €/kWh135 km31 kWh consumed0.138 €/km18.60 €
Manosque, A51 → Marseilleenergy charged at Supercharger 112 kW · 0.60 €/kWh68 km16 kWh consumed0.137 €/km9.35 €
Trip total79.10 €

BMW iX xDrive50 I20

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Limonest, A6initial energy charged at home · 0.20 €/kWh386 km95 kWh consumed0.049 €/km18.95 €
Limonest, A6 → Valence, A7energy charged at Ionity 180 kW · 0.60 €/kWh172 km42 kWh consumed0.147 €/km25.25 €
Valence, A7 → Marseilleenergy charged at Ionity 165 kW · 0.60 €/kWh217 km53 kWh consumed0.147 €/km31.87 €
Trip total76.06 €

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 S P85DBMW iX xDrive50 I20
5 minutes~30 km~46 km
10 minutes~61 km~93 km
20 minutes~122 km~186 km
Full session 10 → 80 %~236 km · 42 min~301 km · 35 min

What produces these figures

WLTP combined consumption
22.5 kWh/100 km · 21.1 kWh/100 km
Net battery
77.5 kWh · 105.2 kWh
Max DC charging
120 kW · 195 kW

Compare with another vehicle

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

TeslaBEV

Model S P85D

691 ch · 77.5 kWh · 2014

BMWBEV

iX xDrive50 I20

523 ch · 105.2 kWh · 2023

Other duels you might be interested in

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Model S P85D vs S e-tron GT

TeslaVSBMW

Model X 90D vs iX xDrive50

Frequently asked questions

The advantage comes from the combo real range + charging speed. On Paris → Marseille (775 km at 130 km/h), the iX xDrive50 I20 arrives in 7h36 with 2 charging stops.

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.

On this trip, the energy used costs 79.10 € (Model S P85D) and 76.06 € (iX xDrive50 I20). For reference, an equivalent BMW 530i (~8.0 L/100 km) would cost about 115 € in fuel.