Over 0–100 km/h, IS 300 AWD and 420d Convertible G22 are neck and neck (7,70 s vs 7,75 s, no significant gap).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | IS 300 AWD | 420d Convertible G22 | Gap |
|---|---|---|---|
| 0–100 km/h | 7.70 s | 7.75 s | 0.05 s · IS 300 AWD |
| 400 m standing start | 15.66 s | 15.64 s | 0.02 s · 420d Convertible G22 |
| 1,000 m standing start | 27.75 s | 28.69 s | 0.94 s · IS 300 AWD |
| Top speed (electronically limited) | 210 km/h | 236 km/h | 26 km/h · 420d Convertible G22 |
| Power-to-weight ratio | 7.08 kg/hp | 9.34 kg/hp | better ratio · IS 300 AWD |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | IS 300 AWD | 420d Convertible G22 |
|---|---|---|
| 0–30 km/h | 2.13 s | 1.52 s |
| 0–50 km/h | 3.60 s | 2.64 s |
| 0–80 km/h | 5.73 s | 5.29 s |
| 0–100 km/h | 7.70 s · tight gap | 7.75 s |
| 0–120 km/h | 10.18 s | 10.87 s |
| 0–160 km/h | 16.98 s | 20.11 s |
| 0–200 km/h | 28.19 s | 37.54 s |
| 400 m standing start | 15.66 s | 15.64 s · tight gap |
| 1,000 m standing start | 27.75 s | 28.69 s |
| Top speed | 210 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 | 245 hp | Pending |
| Torque | 350 Nm | |
| Weight | 1 735 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed automatic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 775 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the IS 300 AWD hits 100 km/h in 7.70 s versus 7.75 s for the 420d Convertible. The 0.05 s gap is negligible: both vehicles are neck and neck.
At 200 metres, the 420d Convertible is doing 116 km/h against 122 km/h for the IS 300 AWD. The gap is 0.38 s. The gap widens compared to the 0-100.
At 400 metres standing start, the 420d Convertible crosses the line in 15.64 s versus 15.66 s. The 0.02 s gap represents roughly 1 m of track
Past 400 metres, the situation changes. The IS 300 AWD maxes out at 210 km/h while the 420d Convertible keeps accelerating towards 236 km/h. At 600 metres, the gap has dropped to 0.32 s.
Around 410 metres, both vehicles are level. This is the inversion point: the IS 300 AWD overcomes its launch deficit thanks to a 26 km/h higher top speed.
At 1,000 metres, the IS 300 AWD finishes in 27.75 s versus 28.69 s. The 0.94 s delta in favour of the IS 300 AWD shows that top speed makes a clear difference.
Both rivals are electronically governed, but not at the same level: the IS 300 AWD is capped at 210 km/h, the 420d Convertible at 236 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 (7.08 kg/hp vs 9.34 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.82 seconds. The 0.05 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, IS 300 AWD and 420d Convertible G22 are neck and neck (7,70 s vs 7,75 s, no significant gap).
IS 300 AWD goes from 0 to 100 km/h in 7,70 seconds (calibrated simulation).
IS 300 AWD: 245 hp, ratio 7,08 kg/hp. 420d Convertible G22: 190 hp, ratio 9,34 kg/hp.
IS 300 AWD: 210 km/h. 420d Convertible G22: 236 km/h.