Bmw M340i xDrive Touring G20 vs Porsche Boxster S Manual 987 : 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 91%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 91 %.
Bmw M340i xDrive Touring vs Boxster S Manual: chronicle of a drag race at 269 km/h
The launch: 0 to 100 km/h
Off the line, the Bmw M340i xDrive Touring hits 100 km/h in 4.58 s versus 4.85 s for the Boxster S Manual. At this point, the Bmw M340i xDrive Touring leads by 0.26 s and sits roughly 5 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Bmw M340i xDrive Touring is doing 145 km/h against 145 km/h for the Boxster S Manual. The gap is 0.20 s. The gap remains stable from the start.
At 400 metres standing start, the Bmw M340i xDrive Touring crosses the line in 12.74 s versus 12.93 s. The 0.19 s gap represents roughly 10 m of track — barely a car length.
Beyond 400 metres: top speed comes into play
Past 400 metres, the Bmw M340i xDrive Touring continues to build its lead. At 600 metres, it runs at 203 km/h versus 202 km/h. At 1,000 metres, the Bmw M340i xDrive Touring finishes in 23.11 s versus 23.37 s, with a 0.26 s lead. Despite a higher top speed (269 km/h), the Boxster S Manual never recovers its launch deficit.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Bmw M340i xDrive Touring is capped at 250 km/h, the Boxster S Manual at 274 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 (4.73 kg/hp vs 4.32 kg/hp) and transmission (Automatic vs Manual).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.28 seconds. The 0.26 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Bmw M340i xDrive Touring is slightly faster than the Porsche Boxster S Manual to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.