Audi A6 45 TFSI vs MG4 Long Range RWD: which is truly faster?

Off the line, the A6 45 TFSI hits 100 km/h in 6.33 s versus 6.73 s for the 4 Long Range RWD. Despite lacking instant torque, 245 hp of power compensates. At this point, the A6 45 TFSI leads by 0.40 s and sits roughly 10 m ahead.

At 200 metres, the A6 45 TFSI is doing 128 km/h against 129 km/h for the 4 Long Range RWD. The gap is 0.36 s. The gap remains stable from the start.

At 400 metres standing start, the A6 45 TFSI crosses the line in 14.54 s versus 14.92 s. The 0.38 s gap represents roughly 17 m of track - two to three car lengths.

Past 400 metres, the A6 45 TFSI continues to build its lead. At 600 metres, it runs at 180 km/h versus 176 km/h. At 1,000 metres, the A6 45 TFSI finishes in 26.23 s versus 27.23 s, with a 1.00 s lead.

Both rivals are electronically governed, but not at the same level: the A6 45 TFSI is capped at 247 km/h, the 4 Long Range RWD at 180 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 10.07 seconds. The 0.40 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.