Lexus IS 350 F Sport RWD vs Porsche Boxster 981 : 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 96%Reading the duel
At 400 m, Porsche Boxster leads by 0.08 s. At 1 000 m, Lexus IS 350 F Sport RWD takes the lead by 0.07 s.
Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 96 %.
IS 350 F Sport RWD vs Boxster: chronicle of a drag race at 254 km/h
The launch: 0 to 100 km/h
Off the line, the Boxster hits 100 km/h in 5.65 s versus 5.76 s for the IS 350 F Sport RWD. At this point, the Boxster leads by 0.10 s and sits roughly 3 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Boxster is doing 136 km/h against 137 km/h for the IS 350 F Sport RWD. The gap is 0.11 s. The gap remains stable from the start.
At 400 metres standing start, the Boxster crosses the line in 13.74 s versus 13.83 s. The 0.08 s gap represents roughly 4 m of track — barely a car length.
Beyond 400 metres: top speed comes into play
Past 400 metres, the situation changes. Past 400 metres, both rivals hit the same electronic ceiling at 250 km/h. Neither can claw back ground through top speed — the outcome hinges on the acceleration curve between 100 and 250 km/h.
At 1,000 metres, the IS 350 F Sport RWD finishes in 24.69 s versus 24.75 s. The 0.07 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 IS 350 F Sport RWD is capped at 250 km/h, the Boxster at 264 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 (5.58 kg/hp vs 4.87 kg/hp) and transmission (Automatic vs Unknown).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.49 seconds. The 0.10 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche Boxster is slightly faster than the Lexus IS 350 F Sport RWD to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.