Bmw 840i Convertible G15 vs Alfa Romeo Stelvio Veloce : 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 94%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 94 %.
Bmw 840i Convertible vs Stelvio Veloce: chronicle of a drag race at 250 km/h
The launch: 0 to 100 km/h
Off the line, the Bmw 840i Convertible hits 100 km/h in 5.57 s versus 5.76 s for the Stelvio Veloce. Despite the faster sprint time, the Stelvio Veloce is 3 m further along the track at this moment: stronger low-speed acceleration offsets a slower run beyond 100 km/h.
From 100 km/h to 400 metres
At 200 metres, the Bmw 840i Convertible is doing 136 km/h against 129 km/h for the Stelvio Veloce. The gap is 0.05 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw 840i Convertible crosses the line in 13.79 s versus 14.12 s. The 0.33 s gap represents roughly 14 m of track — two to three car lengths.
Beyond 400 metres: top speed comes into play
Past 400 metres, the Bmw 840i Convertible continues to build its lead. At 600 metres, it runs at 190 km/h versus 177 km/h. At 1,000 metres, the Bmw 840i Convertible finishes in 24.82 s versus 26.01 s, with a 1.19 s lead.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the Bmw 840i Convertible is capped at 250 km/h, the Stelvio Veloce at 230 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 (5.53 kg/hp vs 6.59 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.26 seconds. The 0.19 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Bmw 840i Convertible is slightly faster than the Alfa Romeo Stelvio Veloce to 100 km/h. The edge holds on standing starts but may narrow at higher speeds depending on aerodynamic load.