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AX5DieselvsB911Petrol
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BMW X5 M50d F15 vs Porsche 911 Carrera (Manual) 991.1: 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.

large SUV · 2018 vs 2011 · Methodology
BMWDiesel

X5 M50d F15

400 hp · 760 Nm · 2,275 kg · 2018

VS
PorschePetrolFaster

911 Carrera (Manual) 991.1

350 hp · 390 Nm · 1,445 kg · 2011

Result · 0–100 km/h

ABMW X5 M50d F15

5.15 s

Gap0.38 sin favour of 911 Carrera (Manual)
BPorsche 911 Carrera (Manual) 991.1

4.77 s

Summary · Caralogy simulation
MeasureX5 M50d F15911 Carrera (Manual) 991.1Gap
0–100 km/h5.15 s4.77 s0.38 s · 911 Carrera (Manual) 991.1
400 m standing start13.47 s12.81 s0.66 s · 911 Carrera (Manual) 991.1
1,000 m standing start24.61 s22.89 s1.72 s · 911 Carrera (Manual) 991.1
Top speed (electronically limited)250 km/h289 km/h39 km/h · 911 Carrera (Manual) 991.1
Power-to-weight ratio5.69 kg/hp4.13 kg/hpbetter ratio · 911 Carrera (Manual) 991.1

Watch the race

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

BMWDieselX5 M50d F15
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrol911 Carrera (Manual) 991.1
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.
StageX5 M50d F15911 Carrera (Manual) 991.1
0–30 km/h1.33 s1.29 s · tight gap
0–50 km/h2.15 s2.15 s · tight gap
0–80 km/h3.71 s · tight gap3.75 s
0–100 km/h5.15 s4.77 s
0–120 km/h6.95 s6.30 s
0–160 km/h12.03 s9.65 s
0–200 km/h20.34 s14.89 s
400 m standing start13.47 s12.81 s
1,000 m standing start24.61 s22.89 s
Top speed limited250 km/h289 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

X5 M50d F15

5,69kg/hpcompensated by −830 kg
CharacteristicValueDetail
Power400 hp6 cyl
Torque760 Nm
Weight2 275 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Porsche

911 Carrera (Manual) 991.1

4,13kg/hpratio better by 1,56 kg/hp
CharacteristicValueDetail
Power350 hp6 cyl
Torque390 Nm
Weight1 445 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxMANUAL

The start: 0 to 100 km/h

Off the line, the 911 Carrera (Manual) hits 100 km/h in 4.77 s versus 5.15 s for the X5 M50d. The 0.38 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the 911 Carrera (Manual) is doing 148 km/h against 136 km/h for the X5 M50d. The gap is 0.26 s. The challenger starts to claw back ground.

At 400 metres standing start, the 911 Carrera (Manual) crosses the line in 12.81 s versus 13.47 s. The 0.66 s gap represents roughly 31 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the 911 Carrera (Manual) continues to build its lead. At 600 metres, it runs at 209 km/h versus 189 km/h. At 1,000 metres, the 911 Carrera (Manual) finishes in 22.88 s versus 24.60 s, with a 1.72 s lead.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the X5 M50d is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 911 Carrera (Manual) at 289 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 (5.69 kg/hp vs 4.13 kg/hp) and transmission (Automatic vs Manual).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.07 seconds. The 0.38 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, 911 Carrera (Manual) 991.1 wins (4,77 s vs 5,15 s).

X5 M50d F15 goes from 0 to 100 km/h in 5,15 seconds (calibrated simulation).

X5 M50d F15: 400 hp, ratio 5,69 kg/hp. 911 Carrera (Manual) 991.1: 350 hp, ratio 4,13 kg/hp.

X5 M50d F15: 250 km/h. 911 Carrera (Manual) 991.1: 289 km/h.