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A750LdPetrolvsB320dDiesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • Specs750Ld · 320d

BMW 750Ld xDrive G11 vs BMW 320d Steptronic G20: 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.

limousine · 2018 vs 2019 · Methodology
BMWPetrolFaster

750Ld xDrive G11

400 hp · 760 Nm · 1,980 kg · 2018

VS
BMWDiesel

320d Steptronic G20

190 hp · 400 Nm · 1,455 kg · 2019

Result · 0–100 km/h

ABMW 750Ld xDrive G11

4.63 s

Gap2.34 sin favour of 750Ld xDrive
BBMW 320d Steptronic G20

6.97 s

Summary · Caralogy simulation
Measure750Ld xDrive G11320d Steptronic G20Gap
0–100 km/h4.63 s6.97 s2.34 s · 750Ld xDrive G11
400 m standing start12.84 s15.11 s2.27 s · 750Ld xDrive G11
1,000 m standing start23.18 s27.70 s4.52 s · 750Ld xDrive G11
Top speed (electronically limited)250 km/h237 km/h13 km/h · 750Ld xDrive G11
Power-to-weight ratio4.95 kg/hp7.66 kg/hpbetter ratio · 750Ld xDrive G11

Watch the race

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

BMWPetrol750Ld xDrive G11
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDiesel320d Steptronic G20
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.
Stage750Ld xDrive G11320d Steptronic G20
0–30 km/h1.25 s1.49 s
0–50 km/h2.07 s2.52 s
0–80 km/h3.44 s4.85 s
0–100 km/h4.63 s6.97 s
0–120 km/h6.14 s9.73 s
0–160 km/h10.21 s17.81 s
0–200 km/h16.08 s32.74 s
400 m standing start12.84 s15.11 s
1,000 m standing start23.18 s27.70 s
Top speed limited250 km/h237 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

750Ld xDrive G11

4,95kg/hpratio better by 2,71 kg/hp
CharacteristicValueDetail
Power400 hp6 cyl
Torque760 Nm
Weight1 980 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic
BMW

320d Steptronic G20

7,66kg/hpcompensated by −525 kg
CharacteristicValueDetail
Power190 hpPending
Torque400 Nm
Weight1 455 kgmanufacturer kerb weight
Drivetrain-
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the 750Ld xDrive hits 100 km/h in 4.63 s versus 6.97 s for the 320d Steptronic. At this point, the 750Ld xDrive leads by 2.34 s and sits roughly 14 m ahead.

From 100 km/h to 400 metres

At 200 metres, the 750Ld xDrive is doing 145 km/h against 120 km/h for the 320d Steptronic. The gap is 1.36 s. The challenger starts to claw back ground.

At 400 metres standing start, the 750Ld xDrive crosses the line in 12.84 s versus 15.10 s. The 2.26 s gap represents roughly 90 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 750Ld xDrive continues to build its lead. At 600 metres, it runs at 203 km/h versus 167 km/h. At 1,000 metres, the 750Ld xDrive finishes in 23.18 s versus 27.70 s, with a 4.52 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 237 km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the 750Ld xDrive is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 320d Steptronic at 240 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 (4.95 kg/hp vs 7.66 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.35 seconds. The 2.34 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, 750Ld xDrive G11 wins (4,63 s vs 6,97 s).

750Ld xDrive G11 goes from 0 to 100 km/h in 4,63 seconds (calibrated simulation).

750Ld xDrive G11: 400 hp, ratio 4,95 kg/hp. 320d Steptronic G20: 190 hp, ratio 7,66 kg/hp.

750Ld xDrive G11: 250 km/h. 320d Steptronic G20: 237 km/h.