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AMegane 4vsB125iPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsMegane 4 · 125i

Renault Megane 4 RS 280 vs BMW 125i F20LCI

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

compact · 2018 vs 2018 · Paris → Marseille · 775 km · 130 km/h
RenaultPetrol

Megane 4 RS 280

280 ch · 2018

VS
BMWPetrolPlus rapide

125i F20LCI

224 ch · 2018

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

Result · total trip time

ARenault Megane 4 RS 280

7h06charging included

1 stop · 163.47 €

Gap5 minin favour of 125i
BBMW 125i F20LCI

7h01no stop

0 stops · 95.86 €

Paris → Marseille · 130 km/h · Caralogy simulation
MeasureMegane 4 RS 280125i F20LCIGap
Total time7h067h015 min · 125i F20LCI
Charging stops1 stop0 stops1 stop · 125i F20LCI
Cost of energy used163.47 €95.86 €67.61 € · 125i F20LCI

Visualise the trip

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

RenaultPetrol
Megane 4 RS 280
100%
463 km
Range
Paris
0 km · departure
Refuel 1
5 min · +45 L · 97.65 €
Marseille
775 km · Arrival 7h06
1
Stops
7h06
Duration
163.47 €
Cost of energy used
BMWPetrolFastest
125i F20LCI
100%
912 km
Range
Paris
0 km · departure
Marseille
775 km · Arrival 7h01
0
Stops
7h01
Duration
95.86 €
Cost of energy used

The 5-minute lead of the 125i F20LCI 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 125i F20LCI versus 1 stop of 5 min for the Megane 4 RS 280.

Motorway consumption: the Caralogy methodology

The official WLTP figures (8,1 L/100km for Megane 4 RS 280 and 6,3 L/100km for 125i F20LCI) 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 9,7 L/100km (Megane 4 RS 280) and 5,7 L/100km (125i F20LCI). 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.

Renault Megane 4 RS 280

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Limonest, A6fuel · 2.17 €/L463 km45 L consumed0.211 €/km97.65 €
Limonest, A6 → Marseillefuel · 2.17 €/L312 km30 L consumed0.211 €/km65.82 €
Trip total163.47 €

BMW 125i F20LCI

SegmentEnergy usedDistanceConsumption€/kmCost (€)
Paris → Marseillefuel · 2.17 €/L775 km44 L consumed0.124 €/km95.86 €
Trip total95.86 €

What produces these figures

WLTP combined consumption
8.1 L/100 km · 6.3 L/100 km
Fuel tank
50 L · 52 L

Compare with another vehicle

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

RenaultPetrol

Megane 4 RS 280

280 ch · 2018

BMWPetrol

125i F20LCI

224 ch · 2018

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125i vs A3 Sedan

Frequently asked questions

On Paris → Marseille (775 km at 130 km/h), the 125i F20LCI 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 163.47 € (Megane 4 RS 280) and 95.86 € (125i F20LCI). For reference, an equivalent Peugeot 308 1.2 PureTech 130 (~6.8 L/100 km) would cost about 97 € in fuel.