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AM550dvsBX7Diesel
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  • PerformancePerformance0-100, top speed
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  • SpecsM550d · X7

BMW M550d xDrive Touring G30 vs BMW X7 M50d G07: 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

M550d xDrive Touring G30

400 hp · 760 Nm · 1,955 kg · 2018

VS
BMWDiesel

X7 M50d G07

400 hp · 760 Nm · 2,460 kg · 2018

Result · 0–100 km/h

ABMW M550d xDrive Touring G30

4.55 s

Gap0.94 sin favour of M550d xDrive Touring
BBMW X7 M50d G07

5.49 s

Summary · Caralogy simulation
MeasureM550d xDrive Touring G30X7 M50d G07Gap
0–100 km/h4.55 s5.49 s0.94 s · M550d xDrive Touring G30
400 m standing start12.82 s13.82 s1.00 s · M550d xDrive Touring G30
1,000 m standing start23.34 s25.28 s1.94 s · M550d xDrive Touring G30
Top speed (electronically limited)250 km/h250 km/hSame
Power-to-weight ratio4.89 kg/hp6.15 kg/hpbetter ratio · M550d xDrive Touring G30

Watch the race

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

BMWDieselM550d xDrive Touring G30
Speed
0km/h
Timer
0,00s
Distance
0m
BMWDieselX7 M50d G07
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.
StageM550d xDrive Touring G30X7 M50d G07
0–30 km/h1.18 s1.37 s
0–50 km/h1.96 s2.23 s
0–80 km/h3.33 s3.92 s
0–100 km/h4.55 s5.49 s
0–120 km/h6.12 s7.47 s
0–160 km/h10.37 s13.10 s
0–200 km/h16.69 s22.66 s
400 m standing start12.82 s13.82 s
1,000 m standing start23.34 s25.28 s
Top speed limited250 km/h250 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

M550d xDrive Touring G30

4,89kg/hpratio better by 1,26 kg/hp
CharacteristicValueDetail
Power400 hp6 cyl
Torque760 Nm
Weight1 955 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic
BMW

X7 M50d G07

6,15kg/hpcompensated by −505 kg
CharacteristicValueDetail
Power400 hp6 cyl
Torque760 Nm
Weight2 460 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission

The start: 0 to 100 km/h

Off the line, the M550d xDrive Touring hits 100 km/h in 4.56 s versus 5.49 s for the X7 M50d. At this point, the M550d xDrive Touring leads by 0.94 s and sits roughly 8 m ahead.

From 100 km/h to 400 metres

At 200 metres, the M550d xDrive Touring is doing 144 km/h against 132 km/h for the X7 M50d. The gap is 0.63 s. The challenger starts to claw back ground.

At 400 metres standing start, the M550d xDrive Touring crosses the line in 12.82 s versus 13.82 s. The 1.00 s gap represents roughly 45 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the M550d xDrive Touring continues to build its lead. At 600 metres, it runs at 200 km/h versus 184 km/h. At 1,000 metres, the M550d xDrive Touring finishes in 23.33 s versus 25.28 s, with a 1.94 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals share the same electronic speed cap: the M550d xDrive Touring and the X7 M50d are governed to 250 (i.e. 155 mph - industry threshold) 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 (4.89 kg/hp vs 6.15 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.69 seconds. The 0.94 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, M550d xDrive Touring G30 wins (4,55 s vs 5,49 s).

M550d xDrive Touring G30 goes from 0 to 100 km/h in 4,55 seconds (calibrated simulation).

M550d xDrive Touring G30: 400 hp, ratio 4,89 kg/hp. X7 M50d G07: 400 hp, ratio 6,15 kg/hp.

M550d xDrive Touring G30: 250 km/h. X7 M50d G07: 250 km/h.