Ferrari Roma vs Bmw M850i xDrive G15 : 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%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 96 %.
Roma vs Bmw M850i xDrive: chronicle of a drag race at 357 km/h
The launch: 0 to 100 km/h
Off the line, the Roma hits 100 km/h in 3.43 s versus 3.83 s for the Bmw M850i xDrive. At this point, the Roma leads by 0.40 s and sits roughly 3 m ahead.
From 100 km/h to 400 metres
At 200 metres, the Roma is doing 182 km/h against 160 km/h for the Bmw M850i xDrive. The gap is 0.54 s. The gap remains stable from the start.
At 400 metres standing start, the Roma crosses the line in 10.68 s versus 11.71 s. The 1.03 s gap represents roughly 56 m of track — a gap visible to the naked eye.
Beyond 400 metres: top speed comes into play
Past 400 metres, the Roma continues to build its lead. At 600 metres, it runs at 256 km/h versus 224 km/h. At 1,000 metres, the Roma finishes in 18.88 s versus 21.07 s, with a 2.20 s lead.
What the numbers don’t tell you
Electronically capped at 250 km/h, the Bmw M850i xDrive never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor — it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.
With two combustion powertrains, the difference comes down to power-to-weight ratio (2.37 kg/hp vs 3.64 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 5.50 seconds. The 0.40 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Ferrari Roma is slightly faster than the Bmw M850i xDrive to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.