The S58 inline six-cylinder engine in some of BMW’s most engaging M cars needs no introduction. Produced since 2019, this charismatic turbocharged mill has powered everything from the M2 to the M3, M4, and even the mighty BMW 3.0 CSL. But performance engines like this one are threatened by ever-stricter emissions regulations. BMW knows how important six-cylinder power is for these M cars, though, so it will be introducing a revised version of the S58 in mid-2026 that meets the European Euro 7 standard and boasts better efficiency—without affecting power and performance in any way.Related: The 7 Best BMW Engines of the 21st CenturyM Ignite Pre-Chamber Ignition System
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Author: Karl Furlong
