BMW 220d Convertible F22 vs BMW 320d xDrive G20: which is truly faster?

Off the line, the 320d xDrive hits 100 km/h in 6.97 s versus 7.66 s for the 220d Convertible. At this point, the 320d xDrive leads by 0.69 s and sits roughly 19 m ahead.

At 200 metres, the 320d xDrive is doing 119 km/h against 120 km/h for the 220d Convertible. The gap is 0.68 s. The gap remains stable from the start.

At 400 metres standing start, the 320d xDrive crosses the line in 15.09 s versus 15.71 s. The 0.62 s gap represents roughly 26 m of track - two to three car lengths.

Past 400 metres, the gap narrows. The 220d Convertible maxes out at 225 km/h while the 320d xDrive keeps accelerating towards 232 km/h. At 600 metres, the gap has dropped to 0.57 s.

At 1,000 metres, the 320d xDrive finishes in 27.84 s versus 28.34 s, with just 0.50 s to spare. The 220d Convertible fails to fully close the launch gap.

Both rivals are electronically governed, but not at the same level: the 220d Convertible is capped at 225 km/h, the 320d xDrive at 233 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 (8.34 kg/hp vs 8.11 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.00 seconds. The 0.69 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.