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AMegane 4vsB128tiPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsMegane 4 · 128ti

Renault Megane 4 RS Trophy 300 vs BMW 128ti F40: which is truly faster?

Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.

compact · 2019 vs 2021 · Methodology
RenaultPetrolFaster

Megane 4 RS Trophy 300

300 hp · 420 Nm · 1,450 kg · 2019

VS
BMWPetrol

128ti F40

265 hp · 400 Nm · 1,445 kg · 2021

Result · 0–100 km/h

ARenault Megane 4 RS Trophy 300

5.44 s

Gap0.78 sin favour of Megane 4 RS Trophy 300
BBMW 128ti F40

6.22 s

Summary · Caralogy simulation
MeasureMegane 4 RS Trophy 300128ti F40Gap
0–100 km/h5.44 s6.22 s0.78 s · Megane 4 RS Trophy 300
400 m standing start13.56 s14.31 s0.75 s · Megane 4 RS Trophy 300
1,000 m standing start24.36 s25.38 s1.02 s · Megane 4 RS Trophy 300
Top speed (electronically limited)260 km/h250 km/h10 km/h · Megane 4 RS Trophy 300
Power-to-weight ratio4.83 kg/hp5.45 kg/hpbetter ratio · Megane 4 RS Trophy 300

Watch the race

Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.

RenaultPetrolMegane 4 RS Trophy 300
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol128ti F40
Speed
0km/h
Timer
0,00s
Distance
0m
100 m
200 m
300 m
400 m
500 m
600 m
700 m
800 m
900 m
1000 m
0m → 1000m
Gap0m

Stage-by-stage comparison

Simulated performance at each stage. Best value in bold.
StageMegane 4 RS Trophy 300128ti F40
0–30 km/h1.55 s1.88 s
0–50 km/h2.58 s3.14 s
0–80 km/h4.06 s4.86 s
0–100 km/h5.44 s6.22 s
0–120 km/h7.00 s7.95 s
0–160 km/h11.44 s12.77 s
0–200 km/h18.58 s20.72 s
400 m standing start13.56 s14.31 s
1,000 m standing start24.36 s25.38 s
Top speed limited260 km/h250 km/h

Parameters and assumptions

Simulation

Start
Standing, straight line
Surface
Dry asphalt, 23°C
Wind
None
Driver
1 person, 75 kg

Calibration

Splits
0–100, 0–200 manufacturer
Power curve
Real measurement (Caralogy)
VMax
Manufacturer limited
Transmission
Losses integrated in model

Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

Renault

Megane 4 RS Trophy 300

4,83kg/hpratio better by 0,62 kg/hp
CharacteristicValueDetail
Power300 hpI4
Torque420 Nm
Weight1 450 kgmanufacturer kerb weight
DrivetrainTraction
GearboxEDC 6-speed (dual clutch)
BMW

128ti F40

5,45kg/hp
CharacteristicValueDetail
Power265 hp4 cyl
Torque400 Nm
Weight1 445 kgmanufacturer kerb weight
DrivetrainTraction
GearboxEight-speed Steptronic Sport transmission

The start: 0 to 100 km/h

Off the line, the Megane 4 RS Trophy 300 hits 100 km/h in 5.44 s versus 6.22 s for the 128ti. At this point, the Megane 4 RS Trophy 300 leads by 0.78 s and sits roughly 13 m ahead.

From 100 km/h to 400 metres

At 200 metres, the Megane 4 RS Trophy 300 is doing 140 km/h against 136 km/h for the 128ti. The gap is 0.62 s. The challenger starts to claw back ground.

At 400 metres standing start, the Megane 4 RS Trophy 300 crosses the line in 13.56 s versus 14.31 s. The 0.75 s gap represents roughly 35 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the Megane 4 RS Trophy 300 continues to build its lead. At 600 metres, it runs at 195 km/h versus 190 km/h. At 1,000 metres, the Megane 4 RS Trophy 300 finishes in 24.36 s versus 25.37 s, with a 1.02 s lead. Both vehicles have similar top speeds (260 vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the Megane 4 RS Trophy 300 is capped at 260 km/h, the 128ti at 250 (i.e. 155 mph - industry threshold) km/h. This isn’t a physical engine limit - it’s a manufacturer choice, usually for tyre safety or homologation reasons. Neither car reaches its true aerodynamic top speed.

With two combustion powertrains, the difference comes down to power-to-weight ratio (4.83 kg/hp vs 5.45 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.97 seconds. The 0.78 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Compare with other alternatives

Swap one of the two models to explore an equivalent duel in the same segment.

Instead of Megane 4 RS Trophy 300
Ford Focus ST 280Peugeot 308 GTi 270Audi S3 Sedan
Instead of 128ti F40
BMW M135i xDriveBMW M135i xDrive

Other duels you might be interested in

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128ti vs A3 allstreet

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Megane 4 RS Trophy 300 vs Golf 8 GTI Clubsport

BMWVSAudi

128ti vs A3 Sedan

Frequently asked questions

Over 0–100 km/h, Megane 4 RS Trophy 300 wins (5,44 s vs 6,22 s).

Megane 4 RS Trophy 300 goes from 0 to 100 km/h in 5,44 seconds (calibrated simulation).

Megane 4 RS Trophy 300: 300 hp, ratio 4,83 kg/hp. 128ti F40: 265 hp, ratio 5,45 kg/hp.

Megane 4 RS Trophy 300: 260 km/h. 128ti F40: 250 km/h.