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Audi S3 Sportback vs BMW X3 xDrive30i G01: 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.

compact · 2026 vs 2018 · Methodology
AudiPetrolFaster

S3 Sportback

333 hp · 420 Nm · 1,535 kg · 2026

VS
BMWPetrol

X3 xDrive30i G01

252 hp · 350 Nm · 1,715 kg · 2018

Result · 0–100 km/h

AAudi S3 Sportback

4.64 s

Gap1.71 sin favour of S3 Sportback
BBMW X3 xDrive30i G01

6.35 s

Summary · Caralogy simulation
MeasureS3 SportbackX3 xDrive30i G01Gap
0–100 km/h4.64 s6.35 s1.71 s · S3 Sportback
400 m standing start13.09 s14.57 s1.48 s · S3 Sportback
1,000 m standing start23.72 s26.56 s2.84 s · S3 Sportback
Top speed (electronically limited)250 km/h240 km/h10 km/h · S3 Sportback
Power-to-weight ratio4.61 kg/hp6.81 kg/hpbetter ratio · S3 Sportback

Watch the race

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

AudiPetrolS3 Sportback
Speed
0km/h
Timer
0,00s
Distance
0m
BMWPetrolX3 xDrive30i G01
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.
StageS3 SportbackX3 xDrive30i G01
0–30 km/h1.23 s1.50 s
0–50 km/h2.05 s2.54 s
0–80 km/h3.41 s4.56 s
0–100 km/h4.64 s6.35 s
0–120 km/h6.63 s8.65 s
0–160 km/h10.91 s15.25 s
0–200 km/h17.45 s27.16 s
400 m standing start13.09 s14.57 s
1,000 m standing start23.72 s26.56 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.

Audi

S3 Sportback

4,61kg/hpratio better by 2,20 kg/hp
CharacteristicValueDetail
Power333 hpPending
Torque420 Nm
Weight1 535 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox7-speed S tronic
BMW

X3 xDrive30i G01

6,81kg/hpcompensated by −180 kg
CharacteristicValueDetail
Power252 hp4 cyl
Torque350 Nm
Weight1 715 kgmanufacturer kerb weight
DrivetrainIntegrale (AWD)
Gearbox8-speed Steptronic

The start: 0 to 100 km/h

Off the line, the S3 Sportback hits 100 km/h in 4.64 s versus 6.35 s for the X3 xDrive30i. At this point, the S3 Sportback leads by 1.71 s and sits roughly 14 m ahead.

From 100 km/h to 400 metres

At 200 metres, the S3 Sportback is doing 139 km/h against 126 km/h for the X3 xDrive30i. The gap is 0.97 s. The challenger starts to claw back ground.

At 400 metres standing start, the S3 Sportback crosses the line in 13.08 s versus 14.56 s. The 1.48 s gap represents roughly 63 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the S3 Sportback continues to build its lead. At 600 metres, it runs at 197 km/h versus 175 km/h. At 1,000 metres, the S3 Sportback finishes in 23.72 s versus 26.56 s, with a 2.84 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 S3 Sportback is capped at 250 (i.e. 155 mph - industry threshold) km/h, the X3 xDrive30i 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 combustion powertrains, the difference comes down to power-to-weight ratio (4.61 kg/hp vs 6.81 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.01 seconds. The 1.71 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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X3 xDrive30i vs Macan

Frequently asked questions

Over 0–100 km/h, S3 Sportback wins (4,64 s vs 6,35 s).

S3 Sportback goes from 0 to 100 km/h in 4,64 seconds (calibrated simulation).

S3 Sportback: 333 hp, ratio 4,61 kg/hp. X3 xDrive30i G01: 252 hp, ratio 6,81 kg/hp.

S3 Sportback: 250 km/h. X3 xDrive30i G01: 240 km/h.