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AM4PetrolvsB420dDiesel
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  • SpecsM4 · 420d

BMW M4 Competition Coupe G82 vs BMW 420d F32: 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 · 2021 vs 2020 · Methodology
BMWPetrolFaster

M4 Competition Coupe G82

510 hp · 650 Nm · 1,725 kg · 2021

VS
BMWDiesel

420d F32

190 hp · 400 Nm · 1,605 kg · 2020

Result · 0–100 km/h

ABMW M4 Competition Coupe G82

3.94 s

Gap3.10 sin favour of M4 Competition Coupe
BBMW 420d F32

7.04 s

Summary · Caralogy simulation
MeasureM4 Competition Coupe G82420d F32Gap
0–100 km/h3.94 s7.04 s3.10 s · M4 Competition Coupe G82
400 m standing start11.70 s15.11 s3.41 s · M4 Competition Coupe G82
1,000 m standing start20.93 s27.78 s6.85 s · M4 Competition Coupe G82
Top speed (electronically limited)250 km/h240 km/h10 km/h · M4 Competition Coupe G82
Power-to-weight ratio3.38 kg/hp8.45 kg/hpbetter ratio · M4 Competition Coupe G82

Watch the race

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

BMWPetrolM4 Competition Coupe G82
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel420d F32
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 Coupe G82420d F32
0–30 km/h1.16 s1.37 s
0–50 km/h1.94 s2.40 s
0–80 km/h3.07 s4.80 s
0–100 km/h3.94 s7.04 s
0–120 km/h4.94 s9.85 s
0–160 km/h7.57 s18.13 s
0–200 km/h11.26 s33.30 s
400 m standing start11.70 s15.11 s
1,000 m standing start20.93 s27.78 s
Top speed limited250 km/h240 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 Coupe G82

3,38kg/hpratio better by 5,07 kg/hp
CharacteristicValueDetail
Power510 hp6 cyl
Torque650 Nm
Weight1 725 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed M Steptronic transmission with Drivelogic
BMW

420d F32

8,45kg/hpcompensated by −120 kg
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 605 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the M4 Competition Coupe hits 100 km/h in 3.94 s versus 7.04 s for the 420d. At this point, the M4 Competition Coupe leads by 3.11 s and sits roughly 13 m ahead.

From 100 km/h to 400 metres

At 200 metres, the M4 Competition Coupe is doing 163 km/h against 119 km/h for the 420d. The gap is 1.94 s. The challenger starts to claw back ground.

At 400 metres standing start, the M4 Competition Coupe crosses the line in 11.70 s versus 15.10 s. The 3.41 s gap represents roughly 132 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the M4 Competition Coupe continues to build its lead. At 600 metres, it runs at 229 km/h versus 166 km/h. At 1,000 metres, the M4 Competition Coupe finishes in 20.93 s versus 27.77 s, with a 6.84 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 240 km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the M4 Competition Coupe is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 420d at 240 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 8.45 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.60 seconds. The 3.11 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 Coupe G82 wins (3,94 s vs 7,04 s).

M4 Competition Coupe G82 goes from 0 to 100 km/h in 3,94 seconds (calibrated simulation).

M4 Competition Coupe G82: 510 hp, ratio 3,38 kg/hp. 420d F32: 190 hp, ratio 8,45 kg/hp.

M4 Competition Coupe G82: 250 km/h. 420d F32: 240 km/h.