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AM140iPetrolvsB118dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsM140i · 118d

BMW M140i F20LCI vs BMW 118d 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 · 2018 vs 2019 · Methodology
BMWPetrolFaster

M140i F20LCI

340 hp · 500 Nm · 1,470 kg · 2018

VS
BMWDiesel

118d F40

150 hp · 350 Nm · 1,400 kg · 2019

Result · 0–100 km/h

ABMW M140i F20LCI

4.54 s

Gap3.81 sin favour of M140i
BBMW 118d F40

8.35 s

Summary · Caralogy simulation
MeasureM140i F20LCI118d F40Gap
0–100 km/h4.54 s8.35 s3.81 s · M140i F20LCI
400 m standing start12.60 s16.20 s3.60 s · M140i F20LCI
1,000 m standing start22.65 s29.44 s6.79 s · M140i F20LCI
Top speed (electronically limited)250 km/h218 km/h32 km/h · M140i F20LCI
Power-to-weight ratio4.32 kg/hp9.33 kg/hpbetter ratio · M140i F20LCI

Watch the race

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

BMWPetrolM140i F20LCI
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel118d 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.
StageM140i F20LCI118d F40
0–30 km/h1.37 s2.02 s
0–50 km/h2.25 s3.31 s
0–80 km/h3.51 s5.89 s
0–100 km/h4.54 s8.35 s
0–120 km/h5.82 s11.53 s
0–160 km/h9.32 s21.37 s
0–200 km/h14.54 s43.65 s
400 m standing start12.60 s16.20 s
1,000 m standing start22.65 s29.44 s
Top speed limited250 km/h218 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

M140i F20LCI

4,32kg/hpratio better by 5,01 kg/hp
CharacteristicValueDetail
Power340 hp6 cyl
Torque500 Nm
Weight1 470 kgmanufacturer kerb weight
Drivetrain-
Gearbox8-speed Steptronic
BMW

118d F40

9,33kg/hpcompensated by −70 kg
CharacteristicValueDetail
Power150 hpPending
Torque350 Nm
Weight1 400 kgmanufacturer kerb weight
Drivetrain-
GearboxSix-speed manual (eight-speed Steptronic transmission)

The start: 0 to 100 km/h

Off the line, the M140i hits 100 km/h in 4.54 s versus 8.35 s for the 118d. At this point, the M140i leads by 3.81 s and sits roughly 22 m ahead.

From 100 km/h to 400 metres

At 200 metres, the M140i is doing 151 km/h against 115 km/h for the 118d. The gap is 2.26 s. The challenger starts to claw back ground.

At 400 metres standing start, the M140i crosses the line in 12.60 s versus 16.20 s. The 3.60 s gap represents roughly 134 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the M140i continues to build its lead. At 600 metres, it runs at 210 km/h versus 159 km/h. At 1,000 metres, the M140i finishes in 22.65 s versus 29.44 s, with a 6.79 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the M140i is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 118d at 218 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 (4.32 kg/hp vs 9.33 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 13.49 seconds. The 3.81 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Other duels you might be interested in

BMWVSAudi

M140i vs S3 Sedan

BMWVSAudi

118d vs A3 Sedan

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M140i vs S3 Sportback

BMWVSAudi

118d vs A3 Sportback

Frequently asked questions

Over 0–100 km/h, M140i F20LCI wins (4,54 s vs 8,35 s).

M140i F20LCI goes from 0 to 100 km/h in 4,54 seconds (calibrated simulation).

M140i F20LCI: 340 hp, ratio 4,32 kg/hp. 118d F40: 150 hp, ratio 9,33 kg/hp.

M140i F20LCI: 250 km/h. 118d F40: 218 km/h.