Over 0–100 km/h, A4 40 TFSI wins (7,28 s vs 8,23 s).
Performance comparison
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
Simulation
Calibration
Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.
| XC40 B4 | A4 40 TFSI | |
|---|---|---|
| 0–100 km/h | 8,23 s | 7,28 s+0,95 s |
| 400 m standing start | 16,11 s | 15,36 s+0,75 s |
| 1,000 m standing start | 29,39 s | 28,08 s+1,31 s |
| Top speed (electronically limited) | 180 km/h | 232 km/h−52 km/h |
| Power-to-weight ratio | 8,17 kg/hp | 7,97 kg/hpbetter ratio |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
Simulated performance at each stage. Winner in green.
| Palier | XC40 B4 | A4 40 TFSI |
|---|---|---|
| 0–30 km/h | 1,98 s | 1,67 s |
| 0–50 km/h | 3,12 s | 2,79 s |
| 0–80 km/h | 5,74 s | 5,10 s |
| 0–100 km/h | 8,23 s | 7,28 s |
| 0–120 km/h | 11,35 s | 10,10 s |
| 0–160 km/h | 21,46 s | 18,44 s |
| 0–200 km/h | - | 34,86 s |
| 400 m standing start | 16,11 s | 15,36 s |
| 1,000 m standing start | 29,39 s | 28,08 s |
| Top speed | 180 km/h | 232 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 197 hp | Pending |
| Torque | 300 Nm | |
| Weight | 1 610 kg | manufacturer kerb weight |
| Drivetrain | Traction | |
| Gearbox | 8-speed Geartronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 190 hp | Pending |
| Torque | 320 Nm | |
| Weight | 1 515 kg | manufacturer kerb weight |
| Drivetrain | Traction | |
| Gearbox | 7-speed S tronic |
Off the line, the A4 40 TFSI hits 100 km/h in 7.28 s versus 8.23 s for the XC40 B4. At this point, the A4 40 TFSI leads by 0.95 s and sits roughly 11 m ahead.
At 200 metres, the A4 40 TFSI is doing 119 km/h against 115 km/h for the XC40 B4. The gap is 0.54 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 16.10 s. The 0.75 s gap represents roughly 29 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 158 km/h. At 1,000 metres, the A4 40 TFSI finishes in 28.08 s versus 29.39 s, with a 1.31 s lead.
Electronically capped at 180 km/h, the XC40 B4 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 (8.17 kg/hp vs 7.97 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 13.40 seconds. The 0.95 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 8,23 s).
XC40 B4 goes from 0 to 100 km/h in 8,23 seconds (calibrated simulation).
XC40 B4: 197 hp, ratio 8,17 kg/hp. A4 40 TFSI: 190 hp, ratio 7,97 kg/hp.
XC40 B4: 180 km/h. A4 40 TFSI: 232 km/h.