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A125iPetrolvsB120dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs125i · 120d

BMW 125i F20LCI vs BMW 120d xDrive 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.

compact · 2018 vs 2018 · Methodology
BMWPetrol

125i F20LCI

224 hp · 310 Nm · 1,400 kg · 2018

VS
BMWDiesel

120d xDrive F20LCI

190 hp · 400 Nm · 1,495 kg · 2018

Donnée constructeur en cours de validation pour ce profil

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

125i F20LCI

6,25kg/hpratio better by 1,62 kg/hp
CharacteristicValueDetail
Power224 hp4 cyl
Torque310 Nm
Weight1 400 kgmanufacturer kerb weight
Drivetrain-
Gearbox8-speed Steptronic
BMW

120d xDrive F20LCI

7,87kg/hpcompensated by −95 kg
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 495 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic

Compare with other alternatives

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

Instead of 120d xDrive F20LCI
Audi A3 allstreetAudi A3 Sportback TFSI quattro S tronic 150 kWAudi A3 allstreet

Other duels you might be interested in

BMWVSAudi

125i vs A3 allstreet

BMWVSAudi

120d xDrive vs A3 Sedan

BMWVSAudi

125i vs A3 Sedan

BMWVSAudi

120d xDrive vs A3 Sportback

Frequently asked questions

See the simulation above.

125i F20LCI goes from 0 to 100 km/h in 6,15 seconds (calibrated simulation).

125i F20LCI: 224 hp, ratio 6,25 kg/hp. 120d xDrive F20LCI: 190 hp, ratio 7,87 kg/hp.

125i F20LCI: 243 km/h. 120d xDrive F20LCI: 222 km/h.