BMW i5 eDrive40 G60 vs Mercedes C 300 W206: which is truly faster?

Off the line, the C 300 hits 100 km/h in 6.03 s versus 6.12 s for the i5 eDrive40. Despite lacking instant torque, 258 hp of power compensates. The 0.09 s gap is negligible: both vehicles are neck and neck.

At 200 metres, the C 300 is doing 132 km/h against 135 km/h for the i5 eDrive40. The gap is 0.12 s. The gap remains stable from the start.

At 400 metres standing start, the C 300 crosses the line in 14.22 s versus 14.29 s. The 0.08 s gap represents roughly 4 m of track - barely a car length.

Past 400 metres, the C 300 continues to build its lead. At 600 metres, it runs at 186 km/h versus 186 km/h. At 1,000 metres, the C 300 finishes in 25.46 s versus 25.87 s, with a 0.40 s lead.

Both rivals are electronically governed, but not at the same level: the i5 eDrive40 is capped at 193 km/h, the C 300 at 250 (i.e. 155 mph - industry threshold) 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.

Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.14 seconds. The 0.09 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.