Over 0–100 km/h, A4 40 TFSI wins (7,28 s vs 8,14 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | A4 40 TFSI | 420i Convertible G22 | Gap |
|---|---|---|---|
| 0–100 km/h | 7.28 s | 8.14 s | 0.86 s · A4 40 TFSI |
| 400 m standing start | 15.36 s | 15.97 s | 0.61 s · A4 40 TFSI |
| 1,000 m standing start | 28.08 s | 28.97 s | 0.89 s · A4 40 TFSI |
| Top speed (electronically limited) | 232 km/h | 236 km/h | 4 km/h · 420i Convertible G22 |
| Power-to-weight ratio | 7.97 kg/hp | 9.18 kg/hp | better ratio · A4 40 TFSI |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | A4 40 TFSI | 420i Convertible G22 |
|---|---|---|
| 0–30 km/h | 1.67 s · tight gap | 1.81 s |
| 0–50 km/h | 2.79 s | 3.07 s |
| 0–80 km/h | 5.10 s | 5.69 s |
| 0–100 km/h | 7.28 s | 8.14 s |
| 0–120 km/h | 10.10 s | 11.24 s |
| 0–160 km/h | 18.44 s | 20.26 s |
| 0–200 km/h | 34.86 s | 36.93 s |
| 400 m standing start | 15.36 s | 15.97 s |
| 1,000 m standing start | 28.08 s | 28.97 s |
| Top speed | 232 km/h | 236 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 | 190 hp | Pending |
| Torque | 320 Nm | |
| Weight | 1 515 kg | manufacturer kerb weight |
| Drivetrain | Traction | |
| Gearbox | 7-speed S tronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 184 hp | 4 cyl |
| Torque | 300 Nm | |
| Weight | 1 690 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the A4 40 TFSI hits 100 km/h in 7.28 s versus 8.14 s for the 420i Convertible. At this point, the A4 40 TFSI leads by 0.86 s and sits roughly 9 m ahead.
At 200 metres, the A4 40 TFSI is doing 119 km/h against 115 km/h for the 420i Convertible. The gap is 0.43 s. The challenger starts to claw back ground.
At 400 metres standing start, the A4 40 TFSI crosses the line in 15.36 s versus 15.96 s. The 0.61 s gap represents roughly 24 m of track - two to three car lengths.
Past 400 metres, the A4 40 TFSI continues to build its lead. At 600 metres, it runs at 165 km/h versus 161 km/h. At 1,000 metres, the A4 40 TFSI finishes in 28.08 s versus 28.97 s, with a 0.89 s lead. Both vehicles have similar top speeds (232 vs 236 km/h), preventing any comeback.
Electronically capped at 236 km/h, the 420i Convertible 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 (7.97 kg/hp vs 9.18 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 13.10 seconds. The 0.86 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, A4 40 TFSI wins (7,28 s vs 8,14 s).
A4 40 TFSI goes from 0 to 100 km/h in 7,28 seconds (calibrated simulation).
A4 40 TFSI: 190 hp, ratio 7,97 kg/hp. 420i Convertible G22: 184 hp, ratio 9,18 kg/hp.
A4 40 TFSI: 232 km/h. 420i Convertible G22: 236 km/h.