Porsche 2019 911 Speedster 992 vs Bmw M4 Convertible F82 : 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 98%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 98 %.
2019 911 Speedster vs Bmw M4 Convertible: chronicle of a drag race at 309 km/h
The launch: 0 to 100 km/h
Off the line, the 2019 911 Speedster hits 100 km/h in 3.92 s versus 4.69 s for the Bmw M4 Convertible. At this point, the 2019 911 Speedster leads by 0.77 s and sits roughly 11 m ahead.
From 100 km/h to 400 metres
At 200 metres, the 2019 911 Speedster is doing 164 km/h against 151 km/h for the Bmw M4 Convertible. The gap is 0.72 s. The gap remains stable from the start.
At 400 metres standing start, the 2019 911 Speedster crosses the line in 11.61 s versus 12.64 s. The 1.04 s gap represents roughly 53 m of track — a gap visible to the naked eye.
Beyond 400 metres: top speed comes into play
Past 400 metres, the 2019 911 Speedster continues to build its lead. At 600 metres, it runs at 230 km/h versus 213 km/h. At 1,000 metres, the 2019 911 Speedster finishes in 20.68 s versus 22.51 s, with a 1.84 s lead.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the 2019 911 Speedster is capped at 309 km/h, the Bmw M4 Convertible at 250 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 (2.88 kg/hp vs 4.15 kg/hp) and transmission (Manual vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.66 seconds. The 0.77 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Porsche 2019 911 Speedster has a clear edge over the Bmw M4 Convertible to 100 km/h. This difference is clearly noticeable in spirited driving and widens on standing starts.