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Home›Motorway›BMW M5 vs Porsche 911

Motorway range comparison

BMW M5 CS F90 vs Porsche 911 GT3 RS 991.2

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

BMWPetrolPlus rapide

M5 CS F90

635 ch · 2021

VS
PorschePetrol

911 GT3 RS 991.2

507 ch · 2016

MotorwayRange & chargingPerformance0-100, top speedConsumptionAnnual TCO
Simulation trip

Paris → Marseille · 130 km/h · Caralogy simulation

M5 CS F90911 GT3 RS 991.2
Total time7h06−25 min7h31
Charging stops1 stop−5 stops6 stops
Total cost127,62 €−58,30 €185,92 €

Visualise the trip

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

BMWPetrolFastest
M5 CS F90
100%
756 km
Range
Paris
0 km · departure
Refuel 1
5 min · +61 L · 124.42 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
127,62 €
Cost
PorschePetrol
911 GT3 RS 991.2
100%
129 km
Range
Paris
0 km · departure
Refuel 1
5 min · +15 L · 30.92 €
Refuel 2
5 min · +15 L · 30.92 €
Refuel 3
5 min · +15 L · 30.92 €
Refuel 4
5 min · +15 L · 30.92 €
Refuel 5
5 min · +15 L · 30.92 €
Refuel 6
5 min · +15 L · 30.92 €
Marseille
775 km · Arrival 7h31
6
Stops
7h31
Duration
185,92 €
Cost

Analysis

The 25-minute lead of the M5 CS F90 does not come from driving speed, but from 5 fewer charging stops on this route (1 vs 6).

Both vehicles drove at 130 km/h for the entire trip. The gap is built at the stops: 1 stop of 5 min for the M5 CS F90 versus 6 stops totalling 30 min for the 911 GT3 RS 991.2.

Motorway consumption: the Caralogy methodology

The official WLTP figures (11,3 L/100km for M5 CS F90 and 14,7 L/100km for 911 GT3 RS 991.2) 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 8,1 L/100km (M5 CS F90) and 11,8 L/100km (911 GT3 RS 991.2). Full methodology: see the dedicated button above the summary.

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.

BMW

M5 CS F90

SegmentDistance€/kmCost
Paris → Aix-en-Provence, A7fuel · 2,03 €/L756 km61 L consumed0,165 €/km124,42 €
Aix-en-Provence, A7 → Marseillefuel · 2,03 €/L19 km2 L consumed0,169 €/km3,20 €
Trip total127,62 €
Porsche

911 GT3 RS 991.2

SegmentDistance€/kmCost
Paris → Auxerre, A6fuel · 2,03 €/L129 km15 L consumed0,240 €/km30,92 €
Auxerre, A6 → Beaune, A6fuel · 2,03 €/L129 km15 L consumed0,240 €/km30,92 €
Beaune, A6 → Limonest, A6fuel · 2,03 €/L129 km15 L consumed0,240 €/km30,92 €
Limonest, A6 → Valence, A7fuel · 2,03 €/L129 km15 L consumed0,240 €/km30,92 €
Valence, A7 → Montélimar, A7fuel · 2,03 €/L129 km15 L consumed0,240 €/km30,92 €
Montélimar, A7 → Aix-en-Provence, A7fuel · 2,03 €/L129 km15 L consumed0,240 €/km30,92 €
Aix-en-Provence, A7 → Marseillefuel · 2,03 €/L2 km0 L consumed0,193 €/km0,39 €
Trip total185,92 €

Compare with another vehicle

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

BMWPetrol

M5 CS F90

635 ch · 2021

PorschePetrol

911 GT3 RS 991.2

507 ch · 2016

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Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the M5 CS F90 arrives in 7h06 with 1 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: 127,62 € (M5 CS F90) and 185,92 € (911 GT3 RS 991.2). An equivalent petrol SUV (~8 L/100 km) would cost about 115 € in motorway fuel. Electric costs less in energy but adds charging stops.