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A120dvsB120dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs120d · 120d

BMW 120d F40 vs BMW 120d xDrive 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 · 2021 vs 2020 · Methodology
BMWDiesel

120d F40

190 hp · 400 Nm · 1,450 kg · 2021

VS
BMWDieselFaster

120d xDrive F40

190 hp · 400 Nm · 1,515 kg · 2020

Result · 0–100 km/h

ABMW 120d F40

7.37 s

Gap0.24 sin favour of 120d xDrive
BBMW 120d xDrive F40

7.13 s

Summary · Caralogy simulation
Measure120d F40120d xDrive F40Gap
0–100 km/h7.37 s7.13 s0.24 s · 120d xDrive F40
400 m standing start15.46 s15.21 s0.25 s · 120d xDrive F40
1,000 m standing start28.03 s28.00 s0.03 s · 120d xDrive F40
Top speed (electronically limited)230 km/h228 km/h2 km/h · 120d F40
Power-to-weight ratio7.63 kg/hp7.97 kg/hpbetter ratio · 120d F40

Watch the race

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

BMWDiesel120d F40
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel120d xDrive 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.
Stage120d F40120d xDrive F40
0–30 km/h1.93 s1.50 s
0–50 km/h3.05 s2.54 s
0–80 km/h5.30 s4.93 s
0–100 km/h7.37 s7.13 s
0–120 km/h10.04 s9.98 s · tight gap
0–160 km/h17.96 s18.51 s
0–200 km/h33.74 s35.95 s
400 m standing start15.46 s15.21 s
1,000 m standing start28.03 s28.00 s · tight gap
Top speed230 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

120d F40

7,63kg/hpratio better by 0,34 kg/hp
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 450 kgmanufacturer kerb weight
DrivetrainTraction
Gearbox8-speed Steptronic transmission
BMW

120d xDrive F40

7,97kg/hpcompensated by −65 kg
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 515 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 120d xDrive hits 100 km/h in 7.13 s versus 7.37 s for the 120d. At this point, the 120d xDrive leads by 0.24 s and sits roughly 10 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 120d xDrive is doing 119 km/h against 121 km/h for the 120d. The gap is 0.33 s. The gap remains stable from the start.

At 400 metres standing start, the 120d xDrive crosses the line in 15.21 s versus 15.45 s. The 0.24 s gap represents roughly 10 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the gap narrows.

At 1,000 metres, the 120d xDrive finishes in 27.99 s versus 28.02 s, with just 0.03 s to spare. The 120d fails to fully close the launch gap.

What the numbers don’t tell you

The 120d xDrive features all-wheel drive (AWD) against the 120d’s FWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.

Both rivals share the same electronic speed cap: the 120d and the 120d xDrive are governed to 231 km/h. At that speed, standard-fit tyres approach their safety threshold - an industrial ceiling common to most electric vehicles in this segment. Neither car shows its true aerodynamic potential in this duel.

With two combustion powertrains, the difference comes down to power-to-weight ratio (7.63 kg/hp vs 7.97 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.69 seconds. The 0.24 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, 120d xDrive F40 wins (7,13 s vs 7,37 s).

120d F40 goes from 0 to 100 km/h in 7,37 seconds (calibrated simulation).

120d F40: 190 hp, ratio 7,63 kg/hp. 120d xDrive F40: 190 hp, ratio 7,97 kg/hp.

120d F40: 230 km/h. 120d xDrive F40: 228 km/h.