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BMW iX xDrive40 vs Audi Q8 SUV

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

large SUV · 2021 vs 2026 · Paris → Marseille · 775 km · 130 km/h
BMWBEV

iX xDrive40

326 ch · 76.6 kWh · 2021

VS
AudiDieselPlus rapide

Q8 SUV

231 ch · 2026

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

Result · total trip time

ABMW iX xDrive40

8h21charging included

5 stops · 96.24 €

Gap75 minin favour of Q8 SUV
BAudi Q8 SUV

7h06charging included

1 stop · 187.09 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasureiX xDrive40Q8 SUVGap
Total time8h217h0675 min · Q8 SUV
Charging stops5 stops1 stop4 stops · Q8 SUV
Cost of energy used96.24 €187.09 €90.85 € · iX xDrive40

Visualise the trip

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

BMWBEV
iX xDrive40
100%
288 km
Range
Paris
0 km · departure
Charge 1
17 min · +31 kWh · 18.38 €
Charge 2
17 min · +31 kWh · 18.38 €
Charge 3
17 min · +31 kWh · 18.38 €
Charge 4
17 min · +31 kWh · 18.38 €
Charge 5
13 min · +23 kWh · 13.70 €
Marseille
775 km · Arrival 8h21
5
Stops
8h21
Duration
96.24 €
Cost of energy used
AudiDieselFastest
Q8 SUV
100%
607 km
Range
Paris
0 km · departure
Refuel 1
5 min · +68 L · 146.47 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
187.09 €
Cost of energy used

The 75-minute lead of the Q8 SUV (combustion) comes from not needing a charging stop: 1 stop of 5 min versus 5 stops totalling 80 min for the iX xDrive40 (electric).

Both vehicles drove at 130 km/h for the entire trip. The Q8 SUV (combustion) makes 1 stop of 5 min, the iX xDrive40 (electric) 5 stops totalling 80 min. Road safety reminder: on a trip of this duration, it is recommended to stop for at least 68 min total (17 min every 2h). The energy cost is 96,24 € for iX xDrive40 versus 187,09 € for Q8 SUV.

Motorway consumption: the Caralogy methodology

The official WLTP figures (21,3 kWh/100km for iX xDrive40 and 8,9 L/100km for Q8 SUV) 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 26,6 kWh/100km (iX xDrive40) and 11,1 L/100km (Q8 SUV). Full methodology: see the assumptions below the controls.

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 0.20 €/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.

BMW iX xDrive40

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Beaune, A6initial energy charged at home · 0.20 €/kWh259 km69 kWh consumed0.053 €/km13.79 €
Beaune, A6 → Tournus, A6energy charged at Ionity 108 kW · 0.60 €/kWh115 km31 kWh consumed0.160 €/km18.38 €
Tournus, A6 → Valence, A7energy charged at Ionity 108 kW · 0.60 €/kWh115 km31 kWh consumed0.160 €/km18.38 €
Valence, A7 → Montélimar, A7energy charged at Ionity 108 kW · 0.60 €/kWh115 km31 kWh consumed0.160 €/km18.38 €
Montélimar, A7 → Manosque, A51energy charged at Ionity 108 kW · 0.60 €/kWh115 km31 kWh consumed0.160 €/km18.38 €
Manosque, A51 → Marseilleenergy charged at Ionity 105 kW · 0.60 €/kWh56 km15 kWh consumed0.159 €/km8.91 €
Trip total96.24 €

Audi Q8 SUV

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Montélimar, A7fuel · 2.17 €/L607 km68 L consumed0.241 €/km146.47 €
Montélimar, A7 → Marseillefuel · 2.17 €/L168 km19 L consumed0.242 €/km40.62 €
Trip total187.09 €

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 durationBMW iX xDrive40Audi Q8 SUV
5 minutes--
10 minutes--
20 minutes--
Full session 10 → 80 %--

What produces these figures

WLTP combined consumption
21.3 kWh/100 km · 8.9 L/100 km

Compare with another vehicle

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

BMWBEV

iX xDrive40

326 ch · 76.6 kWh · 2021

AudiDiesel

Q8 SUV

231 ch · 2026

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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 Q8 SUV arrives in 7h06 with 1 fuel 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.

On this trip, the energy used costs 96.24 € (iX xDrive40) and 187.09 € (Q8 SUV). For reference, an equivalent Peugeot 3008 1.2 PureTech 130 (~7.8 L/100 km) would cost about 112 € in fuel.