Over 0–100 km/h, S3 Sedan wins (4,63 s vs 6,15 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | S3 Sedan | 125i F20LCI | Gap |
|---|---|---|---|
| 0–100 km/h | 4.63 s | 6.15 s | 1.52 s · S3 Sedan |
| 400 m standing start | 13.08 s | 14.36 s | 1.28 s · S3 Sedan |
| 1,000 m standing start | 23.69 s | 25.91 s | 2.22 s · S3 Sedan |
| Top speed (electronically limited) | 250 km/h | 243 km/h | 7 km/h · S3 Sedan |
| Power-to-weight ratio | 4.61 kg/hp | 6.25 kg/hp | better ratio · S3 Sedan |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | S3 Sedan | 125i F20LCI |
|---|---|---|
| 0–30 km/h | 1.20 s | 1.66 s |
| 0–50 km/h | 2.00 s | 2.77 s |
| 0–80 km/h | 3.37 s | 4.57 s |
| 0–100 km/h | 4.63 s | 6.15 s |
| 0–120 km/h | 6.64 s | 8.17 s |
| 0–160 km/h | 10.96 s | 13.86 s |
| 0–200 km/h | 17.37 s | 23.72 s |
| 400 m standing start | 13.08 s | 14.36 s |
| 1,000 m standing start | 23.69 s | 25.91 s |
| Top speed limited | 250 km/h | 243 km/h |
Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 333 hp | Pending |
| Torque | 420 Nm | |
| Weight | 1 535 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 7-speed S tronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 224 hp | 4 cyl |
| Torque | 310 Nm | |
| Weight | 1 400 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic |
Off the line, the S3 Sedan hits 100 km/h in 4.63 s versus 6.15 s for the 125i. At this point, the S3 Sedan leads by 1.52 s and sits roughly 17 m ahead.
At 200 metres, the S3 Sedan is doing 138 km/h against 131 km/h for the 125i. The gap is 0.96 s. The challenger starts to claw back ground.
At 400 metres standing start, the S3 Sedan crosses the line in 13.08 s versus 14.35 s. The 1.28 s gap represents roughly 56 m of track - a gap visible to the naked eye.
Past 400 metres, the S3 Sedan continues to build its lead. At 600 metres, it runs at 198 km/h versus 182 km/h. At 1,000 metres, the S3 Sedan finishes in 23.69 s versus 25.91 s, with a 2.22 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 243 km/h), preventing any comeback.
Both rivals are electronically governed, but not at the same level: the S3 Sedan is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 125i at 243 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 6.25 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.35 seconds. The 1.52 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Swap one of the two models to explore an equivalent duel in the same segment.
Over 0–100 km/h, S3 Sedan wins (4,63 s vs 6,15 s).
S3 Sedan goes from 0 to 100 km/h in 4,63 seconds (calibrated simulation).
S3 Sedan: 333 hp, ratio 4,61 kg/hp. 125i F20LCI: 224 hp, ratio 6,25 kg/hp.
S3 Sedan: 250 km/h. 125i F20LCI: 243 km/h.