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AXMvsBQ8PHEV
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BMW XM 50e G09 vs Audi Q8 SUV: 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.

luxury SUV · 2024 vs 2025 · Methodology
BMWPHEVFaster

XM 50e G09

476 hp · 700 Nm · 2,620 kg · 2024

VS
AudiPHEV

Q8 SUV

394 hp · 600 Nm · 2,415 kg · 2025

Result · 0–100 km/h

ABMW XM 50e G09

5.19 s

Gap0.41 sin favour of XM 50e
BAudi Q8 SUV

5.60 s

Summary · Caralogy simulation
MeasureXM 50e G09Q8 SUVGap
0–100 km/h5.19 s5.60 s0.41 s · XM 50e G09
400 m standing start13.44 s13.94 s0.50 s · XM 50e G09
1,000 m standing start24.30 s25.66 s1.36 s · XM 50e G09
Top speed (electronically limited)250 km/h240 km/h10 km/h · XM 50e G09
Power-to-weight ratio5.50 kg/hp6.13 kg/hpbetter ratio · XM 50e G09

Watch the race

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

BMWPHEVXM 50e G09
Speed
0km/h
Timer
0,00s
Distance
0m
AudiPHEVQ8 SUV
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.
StageXM 50e G09Q8 SUV
0–30 km/h1.39 s1.31 s · tight gap
0–50 km/h2.33 s2.20 s · tight gap
0–80 km/h3.82 s · tight gap3.96 s
0–100 km/h5.19 s5.60 s
0–120 km/h6.88 s7.69 s
0–160 km/h11.59 s13.73 s
0–200 km/h18.84 s24.79 s
400 m standing start13.44 s13.94 s
1,000 m standing start24.30 s25.66 s
Top speed limited250 km/h240 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

XM 50e G09

5,50kg/hpratio better by 0,63 kg/hp
CharacteristicValueDetail
Power476 hp4 cyl
Torque700 Nm
Weight2 620 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxEight-speed M Steptronic transmission
Audi

Q8 SUV

6,13kg/hpcompensated by −205 kg
CharacteristicValueDetail
Power394 hpPending
Torque600 Nm
Weight2 415 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed tiptronic

The start: 0 to 100 km/h

Off the line, the XM 50e hits 100 km/h in 5.19 s versus 5.60 s for the Q8 SUV. The 0.41 s gap is negligible: both vehicles are neck and neck.

From 100 km/h to 400 metres

At 200 metres, the XM 50e is doing 139 km/h against 131 km/h for the Q8 SUV. The gap is 0.21 s. The challenger starts to claw back ground.

At 400 metres standing start, the XM 50e crosses the line in 13.44 s versus 13.94 s. The 0.50 s gap represents roughly 22 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the XM 50e continues to build its lead. At 600 metres, it runs at 193 km/h versus 180 km/h. At 1,000 metres, the XM 50e finishes in 24.30 s versus 25.66 s, with a 1.36 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 240 km/h), preventing any comeback.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the XM 50e is capped at 250 (i.e. 155 mph - industry threshold) km/h, the Q8 SUV 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 plug-in hybrid powertrains, the difference comes down to power-to-weight ratio (5.50 kg/hp vs 6.13 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.93 seconds. The 0.41 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.

Instead of XM 50e G09
BMW X5 xDrive45e

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Frequently asked questions

Over 0–100 km/h, XM 50e G09 wins (5,19 s vs 5,60 s).

XM 50e G09 goes from 0 to 100 km/h in 5,19 seconds (calibrated simulation).

XM 50e G09: 476 hp, ratio 5,50 kg/hp. Q8 SUV: 394 hp, ratio 6,13 kg/hp.

XM 50e G09: 250 km/h. Q8 SUV: 240 km/h.