Bmw 750Ld xDrive G11 vs Porsche 911 Carrera 4 991.1 : 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, Bmw 750Ld xDrive leads by 0.02 s. At 1 000 m, Porsche 911 Carrera 4 takes the lead by 0.21 s.
Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 93 %.
Bmw 750Ld xDrive vs 911 Carrera 4: chronicle of a drag race at 285 km/h
The launch: 0 to 100 km/h
Off the line, the Bmw 750Ld xDrive hits 100 km/h in 4.63 s versus 4.90 s for the 911 Carrera 4. At this point, the Bmw 750Ld xDrive leads by 0.26 s and sits roughly 4 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Bmw 750Ld xDrive is doing 145 km/h against 147 km/h for the 911 Carrera 4. The gap is 0.14 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw 750Ld xDrive crosses the line in 12.84 s versus 12.85 s. The 0.02 s gap represents roughly 1 m of track
Beyond 400 metres: top speed comes into play
Past 400 metres, the situation changes. The Bmw 750Ld xDrive maxes out at 250 km/h while the 911 Carrera 4 keeps accelerating towards 285 km/h. At 600 metres, the gap has dropped to 0.09 s.
Around 430 metres, both vehicles are level. This is the inversion point: the 911 Carrera 4 overcomes its launch deficit thanks to a 35 km/h higher top speed.
At 1,000 metres, the 911 Carrera 4 finishes in 22.96 s versus 23.18 s. The 0.22 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 Bmw 750Ld xDrive is capped at 250 km/h, the 911 Carrera 4 at 285 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 (4.95 kg/hp vs 4.03 kg/hp) and transmission (Automatic vs Manual).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.15 seconds. The 0.26 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Bmw 750Ld xDrive and Porsche 911 Carrera 4 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.