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A530dDieselvsB125iPetrol
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs530d · 125i

BMW 530d xDrive G30 vs BMW 125i 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.

grand tourer · 2018 vs 2018 · Methodology
BMWDieselFaster

530d xDrive G30

265 hp · 620 Nm · 1,720 kg · 2018

VS
BMWPetrol

125i F20LCI

224 hp · 310 Nm · 1,400 kg · 2018

Result · 0–100 km/h

ABMW 530d xDrive G30

5.37 s

Gap0.78 sin favour of 530d xDrive
BBMW 125i F20LCI

6.15 s

Summary · Caralogy simulation
Measure530d xDrive G30125i F20LCIGap
0–100 km/h5.37 s6.15 s0.78 s · 530d xDrive G30
400 m standing start13.70 s14.36 s0.66 s · 530d xDrive G30
1,000 m standing start25.14 s25.91 s0.77 s · 530d xDrive G30
Top speed (electronically limited)250 km/h243 km/h7 km/h · 530d xDrive G30
Power-to-weight ratio6.49 kg/hp6.25 kg/hpbetter ratio · 125i F20LCI

Watch the race

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

BMWDiesel530d xDrive G30
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrol125i F20LCI
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.
Stage530d xDrive G30125i F20LCI
0–30 km/h1.19 s1.66 s
0–50 km/h2.01 s2.77 s
0–80 km/h3.75 s4.57 s
0–100 km/h5.37 s6.15 s
0–120 km/h7.42 s8.17 s
0–160 km/h13.10 s13.86 s
0–200 km/h22.15 s23.72 s
400 m standing start13.70 s14.36 s
1,000 m standing start25.14 s25.91 s
Top speed limited250 km/h243 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

530d xDrive G30

6,49kg/hpcompensated by −320 kg
CharacteristicValueDetail
Power265 hp6 cyl
Torque620 Nm
Weight1 720 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic
BMW

125i F20LCI

6,25kg/hpratio better by 0,24 kg/hp
CharacteristicValueDetail
Power224 hp4 cyl
Torque310 Nm
Weight1 400 kgmanufacturer kerb weight
Drivetrain-
Gearbox8-speed Steptronic

The start: 0 to 100 km/h

Off the line, the 530d xDrive hits 100 km/h in 5.37 s versus 6.15 s for the 125i. At this point, the 530d xDrive leads by 0.78 s and sits roughly 16 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 530d xDrive is doing 132 km/h against 131 km/h for the 125i. The gap is 0.63 s. The challenger starts to claw back ground.

At 400 metres standing start, the 530d xDrive crosses the line in 13.70 s versus 14.35 s. The 0.66 s gap represents roughly 29 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 530d xDrive continues to build its lead. At 600 metres, it runs at 184 km/h versus 182 km/h. At 1,000 metres, the 530d xDrive finishes in 25.14 s versus 25.91 s, with a 0.77 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 243 km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the 530d xDrive is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 125i at 243 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 (6.49 kg/hp vs 6.25 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.35 seconds. The 0.78 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.

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Audi A3 Sedan

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Frequently asked questions

Over 0–100 km/h, 530d xDrive G30 wins (5,37 s vs 6,15 s).

530d xDrive G30 goes from 0 to 100 km/h in 5,37 seconds (calibrated simulation).

530d xDrive G30: 265 hp, ratio 6,49 kg/hp. 125i F20LCI: 224 hp, ratio 6,25 kg/hp.

530d xDrive G30: 250 km/h. 125i F20LCI: 243 km/h.