Skip to main content
CaralogyCaralogy
HomeBrandsRoad TripBudgetDuelGuides
Caralogy

The car comparison platform. Physics simulation, road trips, real costs.

Navigation
All brandsCar duelRunning costsMotorwayMethodology
Simulators
Motorway simulatorRunning costsPerformance duel
Brands
VolkswagenBMWMercedesToyotaTeslaAudi
FRENDEESIT
© 2026 Caralogy · All rights reserved
  1. Home
  2. /Duel
  3. /SUV
AiXBEVvsBQ8Diesel
  • MotorwayMotorwayRange and charging
  • PerformancePerformance0-100, top speed
  • ConsumptionConsumptionYearly cost
  • SpecsiX · Q8

BMW iX xDrive40 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.

large SUV · 2021 vs 2026 · Methodology
BMWBEVFaster

iX xDrive40

326 hp · 630 Nm · 2,440 kg · 2021

VS
AudiDiesel

Q8 SUV

231 hp · 500 Nm · 2,160 kg · 2026

Result · 0–100 km/h

ABMW iX xDrive40

6.04 s

Gap0.89 sin favour of iX xDrive40
BAudi Q8 SUV

6.93 s

Summary · Caralogy simulation
MeasureiX xDrive40Q8 SUVGap
0–100 km/h6.04 s6.93 s0.89 s · iX xDrive40
400 m standing start14.37 s15.04 s0.67 s · iX xDrive40
1,000 m standing start26.37 s27.78 s1.41 s · iX xDrive40
Top speed (electronically limited)200 km/h226 km/h26 km/h · Q8 SUV
Power-to-weight ratio7.48 kg/hp9.35 kg/hpbetter ratio · iX xDrive40

Watch the race

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

BMWBEViX xDrive40
Speed
0km/h
Timer
0,00s
Distance
0m
AudiDieselQ8 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.
StageiX xDrive40Q8 SUV
0–30 km/h1.42 s1.31 s · tight gap
0–50 km/h2.37 s2.33 s · tight gap
0–80 km/h4.25 s4.69 s
0–100 km/h6.04 s6.93 s
0–120 km/h8.34 s9.81 s
0–160 km/h15.21 s18.24 s
0–200 km/h26.44 s34.32 s
400 m standing start14.37 s15.04 s
1,000 m standing start26.37 s27.78 s
Top speed200 km/h226 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

iX xDrive40

7,48kg/hpratio better by 1,87 kg/hp
CharacteristicValueDetail
Power326 hpPending
Torque630 Nm
Weight2 440 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
GearboxSingle-speed reduction gear
Audi

Q8 SUV

9,35kg/hpcompensated by −280 kg
CharacteristicValueDetail
Power231 hpPending
Torque500 Nm
Weight2 160 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed tiptronic

The start: 0 to 100 km/h

Off the line, the iX xDrive40 hits 100 km/h in 6.04 s versus 6.93 s for the Q8 SUV. The instant torque of 630 Nm from the electric motor makes the difference. At this point, the iX xDrive40 leads by 0.89 s and sits roughly 3 m ahead.

From 100 km/h to 400 metres

At 200 metres, the iX xDrive40 is doing 127 km/h against 119 km/h for the Q8 SUV. The gap is 0.35 s. The challenger starts to claw back ground.

At 400 metres standing start, the iX xDrive40 crosses the line in 14.36 s versus 15.03 s. The 0.67 s gap represents roughly 27 m of track - two to three car lengths.

Beyond 400 metres: top speed comes into play

Past 400 metres, the iX xDrive40 continues to build its lead. At 600 metres, it runs at 175 km/h versus 165 km/h. At 1,000 metres, the iX xDrive40 finishes in 26.37 s versus 27.77 s, with a 1.41 s lead. Despite a higher top speed (226 km/h), the Q8 SUV never recovers its launch deficit.

What the numbers don’t tell you

Both rivals are electronically governed, but not at the same level: the iX xDrive40 is capped at 200 km/h, the Q8 SUV at 226 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.

Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.52 seconds. The 0.89 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Other duels you might be interested in

TeslaVSBMW

Model X 100D vs iX xDrive40

AudiVSBMW

Q8 SUV vs X5 xDrive25d

TeslaVSBMW

Model X 90D vs iX xDrive40

PorscheVSAudi

Cayenne Diesel vs Q8 SUV

Frequently asked questions

Over 0–100 km/h, iX xDrive40 wins (6,04 s vs 6,93 s).

iX xDrive40 goes from 0 to 100 km/h in 6,04 seconds (calibrated simulation).

iX xDrive40: 326 hp, ratio 7,48 kg/hp. Q8 SUV: 231 hp, ratio 9,35 kg/hp.

iX xDrive40: 200 km/h. Q8 SUV: 226 km/h.