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.
400 mSimulation de performance
Race simulation at real speed
CONFIDENCE 96%The Boxster reaches 100 km/h first (5.60 s vs 5.75 s), but the IS 350 is ahead at every metre of the race. Explanation: the IS 350 accelerates harder at low speed and builds a distance gap before either car hits 100 km/h.
Why this result?
The Porsche Boxster is faster at 0-100 km/h, but the Lexus IS 350 F Sport RWD compensates at high speed thanks to higher peak power or top speed. At 400 m, Lexus IS 350 F Sport RWD leads by 0.03 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 252 km/h
The launch: 0 to 100 km/h
Off the line, the Boxster hits 100 km/h in 5.60 s versus 5.76 s for the IS 350 F Sport RWD. At this point, the Boxster leads by 0.16 s and sits roughly 5 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Boxster is doing 134 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 IS 350 F Sport RWD crosses the line in 13.83 s versus 13.86 s. The 0.03 s gap represents roughly 1 m of track
Beyond 400 metres: top speed comes into play
Past 400 metres, the IS 350 F Sport RWD continues to build its lead. At 600 metres, it runs at 193 km/h versus 185 km/h. At 1,000 metres, the IS 350 F Sport RWD finishes in 24.69 s versus 25.21 s, with a 0.52 s lead. Both vehicles have similar top speeds (250 vs 252 km/h), preventing any comeback.
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 262 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 5.15 kg/hp) and transmission (Automatic vs Unknown).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.61 seconds. The 0.16 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Lexus IS 350 F Sport RWD and Porsche Boxster are virtually tied to 100 km/h. The gap is under a tenth of a second — only the physics engine can settle it step by step.