Porsche Panamera Turbo 970.1 vs Lexus IS 500 F Sport RWD : which one is faster?
0-100 km/h, 400 m, 1000 m, top speed — physics simulation calibrated on 7 measures.


Simulation de performance
Race simulation at real speed
CONFIDENCE 93%Reading the duel
At 400 m, Porsche Panamera Turbo leads by 0.21 s. At 1 000 m, Lexus IS 500 F Sport RWD takes the lead by 0.04 s.
Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 93 %.
Panamera Turbo vs IS 500 F Sport RWD: chronicle of a drag race at 293 km/h
The launch: 0 to 100 km/h
Off the line, the Panamera Turbo hits 100 km/h in 4.16 s versus 4.54 s for the IS 500 F Sport RWD. At this point, the Panamera Turbo leads by 0.38 s and sits roughly 6 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Panamera Turbo is doing 153 km/h against 154 km/h for the IS 500 F Sport RWD. The gap is 0.26 s. The challenger starts to claw back ground.
At 400 metres standing start, the Panamera Turbo crosses the line in 12.21 s versus 12.42 s. The 0.21 s gap represents roughly 11 m of track — two to three car lengths.
Beyond 400 metres: top speed comes into play
Past 400 metres, the situation changes. The IS 500 F Sport RWD maxes out at 270 km/h while the Panamera Turbo keeps accelerating towards 293 km/h. At 600 metres, the gap has dropped to 0.16 s.
Around 915 metres, both vehicles are level. This is the inversion point: the IS 500 F Sport RWD overcomes its launch deficit thanks to a 23 km/h higher top speed.
At 1,000 metres, the IS 500 F Sport RWD finishes in 22.06 s versus 22.11 s. The 0.05 s delta shows an extremely tight race.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Panamera Turbo is capped at 303 km/h, the IS 500 F Sport RWD at 270 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 (3.58 kg/hp vs 3.67 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.32 seconds. The 0.38 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche Panamera Turbo is slightly faster than the Lexus IS 500 F Sport RWD to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.