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AM850iPetrolvsBA3Diesel
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  • SpecsM850i · A3

BMW M850i xDrive G15 vs Audi A3 Sedan: 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.

limousine · 2020 vs 2026 · Methodology
BMWPetrolFaster

M850i xDrive G15

530 hp · 750 Nm · 1,930 kg · 2020

VS
AudiDiesel

A3 Sedan

116 hp · 300 Nm · 1,355 kg · 2026

Result · 0–100 km/h

ABMW M850i xDrive G15

3.83 s

Gap6.04 sin favour of M850i xDrive
BAudi A3 Sedan

9.87 s

Summary · Caralogy simulation
MeasureM850i xDrive G15A3 SedanGap
0–100 km/h3.83 s9.87 s6.04 s · M850i xDrive G15
400 m standing start11.71 s17.21 s5.50 s · M850i xDrive G15
1,000 m standing start21.08 s31.24 s10.16 s · M850i xDrive G15
Top speed (electronically limited)250 km/h215 km/h35 km/h · M850i xDrive G15
Power-to-weight ratio3.64 kg/hp11.68 kg/hpbetter ratio · M850i xDrive G15

Watch the race

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

BMWPetrolM850i xDrive G15
Speed
0km/h
Timer
0,00s
Distance
0m
AudiDieselA3 Sedan
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.
StageM850i xDrive G15A3 Sedan
0–30 km/h1.10 s2.22 s
0–50 km/h1.83 s3.75 s
0–80 km/h2.89 s6.86 s
0–100 km/h3.83 s9.87 s
0–120 km/h4.88 s13.82 s
0–160 km/h7.71 s26.28 s
0–200 km/h11.70 s58.04 s
400 m standing start11.71 s17.21 s
1,000 m standing start21.08 s31.24 s
Top speed limited250 km/h215 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

M850i xDrive G15

3,64kg/hpratio better by 8,04 kg/hp
CharacteristicValueDetail
Power530 hp8 cyl
Torque750 Nm
Weight1 930 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic
Audi

A3 Sedan

11,68kg/hpcompensated by −575 kg
CharacteristicValueDetail
Power116 hpPending
Torque300 Nm
Weight1 355 kgmanufacturer kerb weight
DrivetrainTraction
Gearbox6-speed manual gearbox

The start: 0 to 100 km/h

Off the line, the M850i xDrive hits 100 km/h in 3.83 s versus 9.87 s for the A3 Sedan. At this point, the M850i xDrive leads by 6.04 s and sits roughly 28 m ahead.

From 100 km/h to 400 metres

At 200 metres, the M850i xDrive is doing 160 km/h against 108 km/h for the A3 Sedan. The gap is 3.55 s. The challenger starts to claw back ground.

At 400 metres standing start, the M850i xDrive crosses the line in 11.71 s versus 17.21 s. The 5.50 s gap represents roughly 187 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the M850i xDrive continues to build its lead. At 600 metres, it runs at 224 km/h versus 150 km/h. At 1,000 metres, the M850i xDrive finishes in 21.07 s versus 31.24 s, with a 10.17 s lead.

What the numbers don’t tell you

The M850i xDrive features all-wheel drive (AWD) against the A3 Sedan’s FWD. 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.

Electronically capped at 250 (i.e. 155 mph - industry threshold) km/h, the M850i xDrive never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor - it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.

With two combustion powertrains, the difference comes down to power-to-weight ratio (3.64 kg/hp vs 11.68 kg/hp) and transmission (Automatic vs Manual).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 16.25 seconds. The 6.04 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

Other duels you might be interested in

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A3 Sedan vs 116d

Frequently asked questions

Over 0–100 km/h, M850i xDrive G15 wins (3,83 s vs 9,87 s).

M850i xDrive G15 goes from 0 to 100 km/h in 3,83 seconds (calibrated simulation).

M850i xDrive G15: 530 hp, ratio 3,64 kg/hp. A3 Sedan: 116 hp, ratio 11,68 kg/hp.

M850i xDrive G15: 250 km/h. A3 Sedan: 215 km/h.