We have heard about the M4 being tested against the retiring Audi RS5 before, but we didn’t have proof of them actually going against each other or video of the entire contest. Now, we can actually see them going at it, and it’s a marvelous experience.
The guys from Auto Express, Owen Mildenhall to be more precise, took the two around their test track to see how the new guy fares against the aging legend. It’s time for the BMW turbocharged engine to go up against the naturally aspirated Audi unit.
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