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AM4PetrolvsB120dDiesel
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  • PerformancePerformance0-100, top speed
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  • SpecsM4 · 120d

BMW M4 Competition F82 vs BMW 120d F20LCI: 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.

saloon · 2020 vs 2018 · Methodology
BMWPetrolFaster

M4 Competition F82

510 hp · 650 Nm · 1,725 kg · 2020

VS
BMWDiesel

120d F20LCI

190 hp · 400 Nm · 1,415 kg · 2018

Result · 0–100 km/h

ABMW M4 Competition F82

3.83 s

Gap3.32 sin favour of M4 Competition
BBMW 120d F20LCI

7.15 s

Summary · Caralogy simulation
MeasureM4 Competition F82120d F20LCIGap
0–100 km/h3.83 s7.15 s3.32 s · M4 Competition F82
400 m standing start11.61 s15.30 s3.69 s · M4 Competition F82
1,000 m standing start20.89 s27.54 s6.65 s · M4 Competition F82
Top speed (electronically limited)250 km/h228 km/h22 km/h · M4 Competition F82
Power-to-weight ratio3.38 kg/hp7.45 kg/hpbetter ratio · M4 Competition F82

Watch the race

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

BMWPetrolM4 Competition F82
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel120d F20LCI
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.
StageM4 Competition F82120d F20LCI
0–30 km/h1.13 s2.05 s
0–50 km/h1.88 s3.27 s
0–80 km/h2.97 s5.29 s
0–100 km/h3.83 s7.15 s
0–120 km/h4.79 s9.55 s
0–160 km/h7.46 s16.63 s
0–200 km/h11.33 s30.38 s
400 m standing start11.61 s15.30 s
1,000 m standing start20.89 s27.54 s
Top speed limited250 km/h228 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.

BMW

M4 Competition F82

3,38kg/hpratio better by 4,07 kg/hp
CharacteristicValueDetail
Power510 hpPending
Torque650 Nm
Weight1 725 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed M Steptronic transmission with Drivelogic
BMW

120d F20LCI

7,45kg/hpcompensated by −310 kg
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 415 kgmanufacturer kerb weight
Drivetrain-
Gearbox6-speed manual (8-speed Steptronic)

The start: 0 to 100 km/h

Off the line, the M4 Competition hits 100 km/h in 3.83 s versus 7.15 s for the 120d. At this point, the M4 Competition leads by 3.32 s and sits roughly 24 m ahead.

From 100 km/h to 400 metres

At 200 metres, the M4 Competition is doing 163 km/h against 124 km/h for the 120d. The gap is 2.45 s. The challenger starts to claw back ground.

At 400 metres standing start, the M4 Competition crosses the line in 11.61 s versus 15.30 s. The 3.69 s gap represents roughly 148 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the M4 Competition continues to build its lead. At 600 metres, it runs at 227 km/h versus 172 km/h. At 1,000 metres, the M4 Competition finishes in 20.89 s versus 27.53 s, with a 6.65 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the M4 Competition is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 120d at 228 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 (3.38 kg/hp vs 7.45 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.99 seconds. The 3.32 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

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Frequently asked questions

Over 0–100 km/h, M4 Competition F82 wins (3,83 s vs 7,15 s).

M4 Competition F82 goes from 0 to 100 km/h in 3,83 seconds (calibrated simulation).

M4 Competition F82: 510 hp, ratio 3,38 kg/hp. 120d F20LCI: 190 hp, ratio 7,45 kg/hp.

M4 Competition F82: 250 km/h. 120d F20LCI: 228 km/h.