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AX6vsB911Petrol
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  • SpecsX6 · 911

BMW X6 M50i G06 vs Porsche 911 Carrera Cab 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 · 2021 vs 2011
X6 M50i G06
530 hp · 750 Nm · 2,240 kg · 2021
911 Carrera Cab 991.1
350 hp · 390 Nm · 1,500 kg · 2011

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.

X6 M50i G06911 Carrera Cab 991.1
0–100 km/h4,25 s−0,26 s4,51 s
400 m standing start12,30 s−0,32 s12,62 s
1,000 m standing start22,14 s−0,59 s22,73 s
Top speed (electronically limited)250 km/h289 km/h−39 km/h
Power-to-weight ratio4,23 kg/hpbetter ratio4,29 kg/hp

Watch the race

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

BMWPetrolX6 M50i G06
Speed
0km/h
Timer
0,00s
Distance
0m
PorschePetrol911 Carrera Cab 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. Winner in green.

PalierX6 M50i G06911 Carrera Cab 991.1
0–30 km/h1,25 s1,23 stight gap
0–50 km/h2,06 s2,06 stight gap
0–80 km/h3,27 s3,43 s
0–100 km/h4,25 s4,51 s
0–120 km/h5,46 s5,88 s
0–160 km/h8,75 s9,48 s
0–200 km/h13,66 s14,83 s
400 m standing start12,30 s12,62 s
1,000 m standing start22,14 s22,73 s
Top speed limited250 km/h289 km/h

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

BMW

X6 M50i G06

4,23kg/hpratio better by 0,06 kg/hp
CharacteristicValueDetail
Power530 hp8 cyl
Torque750 Nm
Weight2 240 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed Steptronic transmission
Porsche

911 Carrera Cab 991.1

4,29kg/hpcompensated by −740 kg
CharacteristicValueDetail
Power350 hp6 cyl
Torque390 Nm
Weight1 500 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxUnknown

The start: 0 to 100 km/h

Off the line, the X6 M50i hits 100 km/h in 4.26 s versus 4.52 s for the 911 Carrera Cab. At this point, the X6 M50i leads by 0.26 s and sits roughly 1 m ahead.

From 100 km/h to 400 metres

At 200 metres, the X6 M50i is doing 154 km/h against 148 km/h for the 911 Carrera Cab. The gap is 0.20 s. The gap remains stable from the start.

At 400 metres standing start, the X6 M50i crosses the line in 12.29 s versus 12.62 s. The 0.32 s gap represents roughly 16 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the X6 M50i continues to build its lead. At 600 metres, it runs at 214 km/h versus 208 km/h. At 1,000 metres, the X6 M50i finishes in 22.14 s versus 22.72 s, with a 0.59 s lead. Despite a higher top speed (289 km/h), the 911 Carrera Cab never recovers its launch deficit.

What the numbers don’t tell you

The X6 M50i features all-wheel drive (AWD) against the 911 Carrera Cab’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 X6 M50i is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 911 Carrera Cab 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 (4.23 kg/hp vs 4.29 kg/hp) and transmission (Automatic vs Unknown).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.73 seconds. The 0.26 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, X6 M50i G06 wins (4,25 s vs 4,51 s).

X6 M50i G06 goes from 0 to 100 km/h in 4,25 seconds (calibrated simulation).

X6 M50i G06: 530 hp, ratio 4,23 kg/hp. 911 Carrera Cab 991.1: 350 hp, ratio 4,29 kg/hp.

X6 M50i G06: 250 km/h. 911 Carrera Cab 991.1: 289 km/h.