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A120dDieselvsB218iPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs120d · 218i

BMW 120d xDrive F40 vs BMW 218i Steptronic F44: 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 · 2020 vs 2021 · Methodology
BMWDieselFaster

120d xDrive F40

190 hp · 400 Nm · 1,515 kg · 2020

VS
BMWPetrol

218i Steptronic F44

136 hp · 220 Nm · 1,435 kg · 2021

Result · 0–100 km/h

ABMW 120d xDrive F40

7.13 s

Gap1.65 sin favour of 120d xDrive
BBMW 218i Steptronic F44

8.78 s

Summary · Caralogy simulation
Measure120d xDrive F40218i Steptronic F44Gap
0–100 km/h7.13 s8.78 s1.65 s · 120d xDrive F40
400 m standing start15.21 s16.44 s1.23 s · 120d xDrive F40
1,000 m standing start28.00 s29.97 s1.97 s · 120d xDrive F40
Top speed (electronically limited)228 km/h210 km/h18 km/h · 120d xDrive F40
Power-to-weight ratio7.97 kg/hp10.55 kg/hpbetter ratio · 120d xDrive F40

Watch the race

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

BMWDiesel120d xDrive F40
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol218i Steptronic F44
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 xDrive F40218i Steptronic F44
0–30 km/h1.50 s1.90 s
0–50 km/h2.54 s3.25 s
0–80 km/h4.93 s6.13 s
0–100 km/h7.13 s8.78 s
0–120 km/h9.98 s12.26 s
0–160 km/h18.51 s22.94 s
0–200 km/h35.95 s48.38 s
400 m standing start15.21 s16.44 s
1,000 m standing start28.00 s29.97 s
Top speed228 km/h210 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 xDrive F40

7,97kg/hpratio better by 2,58 kg/hp
CharacteristicValueDetail
Power190 hp4 cyl
Torque400 Nm
Weight1 515 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic transmission
BMW

218i Steptronic F44

10,55kg/hpcompensated by −80 kg
CharacteristicValueDetail
Power136 hp4 cyl
Torque220 Nm
Weight1 435 kgmanufacturer kerb weight
DrivetrainPropulsion
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 8.78 s for the 218i Steptronic. At this point, the 120d xDrive leads by 1.65 s and sits roughly 18 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 120d xDrive is doing 119 km/h against 112 km/h for the 218i Steptronic. The gap is 0.89 s. The challenger starts to claw back ground.

At 400 metres standing start, the 120d xDrive crosses the line in 15.21 s versus 16.44 s. The 1.23 s gap represents roughly 47 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 120d xDrive continues to build its lead. At 600 metres, it runs at 164 km/h versus 155 km/h. At 1,000 metres, the 120d xDrive finishes in 27.99 s versus 29.97 s, with a 1.98 s lead.

What the numbers don’t tell you

The 120d xDrive features all-wheel drive (AWD) against the 218i Steptronic’s RWD. 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 are electronically governed, but not at the same level: the 120d xDrive is capped at 230 km/h, the 218i Steptronic at 210 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 (7.97 kg/hp vs 10.55 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 14.37 seconds. The 1.65 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Compare with other alternatives

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

Instead of 120d xDrive F40
Audi A3 allstreetAudi A3 allstreetAudi A3 allstreet
Instead of 218i Steptronic F44
Audi A3 Sedan

Other duels you might be interested in

BMWVSAudi

120d xDrive vs A3 Sedan

AudiVSBMW

A3 allstreet vs 218i Steptronic

BMWVSAudi

120d xDrive vs A3 Sportback

AudiVSBMW

A3 allstreet vs 218i Steptronic

Frequently asked questions

Over 0–100 km/h, 120d xDrive F40 wins (7,13 s vs 8,78 s).

120d xDrive F40 goes from 0 to 100 km/h in 7,13 seconds (calibrated simulation).

120d xDrive F40: 190 hp, ratio 7,97 kg/hp. 218i Steptronic F44: 136 hp, ratio 10,55 kg/hp.

120d xDrive F40: 228 km/h. 218i Steptronic F44: 210 km/h.