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AS5vsB840iPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
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  • SpecsS5 · 840i

Audi S5 Avant vs BMW 840i Convertible G15

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

saloon · 2026 vs 2020 · Paris → Marseille · 775 km · 130 km/h
AudiPetrol

S5 Avant

367 ch · 2026

VS
BMWPetrolPlus rapide

840i Convertible G15

340 ch · 2020

Simulation trip
Assumptions: 130 km/h · start réservoir plein · mild weather

Result · total trip time

AAudi S5 Avant

7h06charging included

1 stop · 161.45 €

Gap5 minin favour of 840i Convertible
BBMW 840i Convertible G15

7h01no stop

0 stops · 107.63 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasureS5 Avant840i Convertible G15Gap
Total time7h067h015 min · 840i Convertible G15
Charging stops1 stop0 stops1 stop · 840i Convertible G15
Cost of energy used161.45 €107.63 €53.82 € · 840i Convertible G15

Visualise the trip

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

AudiPetrol
S5 Avant
100%
525 km
Range
Paris
0 km · departure
Refuel 1
5 min · +50 L · 109.37 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
161.45 €
Cost of energy used
BMWPetrolFastest
840i Convertible G15
100%
1063 km
Range
Paris
0 km · departure
Marseille
775 km · Arrival 7h01
0
Stops
7h01
Duration
107.63 €
Cost of energy used

The 5-minute lead of the 840i Convertible G15 does not come from driving speed, but from one fewer charging stop on this route (0 vs 1).

Both vehicles drove at 130 km/h for the entire trip. The gap is built at the stops: no stop for the 840i Convertible G15 versus 1 stop of 5 min for the S5 Avant.

Motorway consumption: the Caralogy methodology

The official WLTP figures (8,0 L/100km for S5 Avant and 7,5 L/100km for 840i Convertible G15) 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 9,6 L/100km (S5 Avant) and 6,4 L/100km (840i Convertible G15). Full methodology: see the assumptions below the controls.

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.

Audi S5 Avant

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Valence, A7fuel · 2.17 €/L525 km50 L consumed0.208 €/km109.37 €
Valence, A7 → Marseillefuel · 2.17 €/L250 km24 L consumed0.208 €/km52.08 €
Trip total161.45 €

BMW 840i Convertible G15

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Marseillefuel · 2.17 €/L775 km50 L consumed0.139 €/km107.63 €
Trip total107.63 €

What produces these figures

WLTP combined consumption
8.0 L/100 km · 7.5 L/100 km
Fuel tank
56 L · 68 L

Compare with another vehicle

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

AudiPetrol

S5 Avant

367 ch · 2026

BMWPetrol

840i Convertible G15

340 ch · 2020

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Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the 840i Convertible G15 arrives in 7h01 with 0 fuel 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 161.45 € (S5 Avant) and 107.63 € (840i Convertible G15). For reference, an equivalent Peugeot 508 1.6 PureTech 180 (~7.2 L/100 km) would cost about 103 € in fuel.