BMW has refreshed and updated the 3 Series for 2025. New colours, new interior features and more powerful six-cylinder models (including the 523-horsepower M3 Competition) are part of the package. Mild hybrid technology is now applied to the base four-cylinder engine, which delivers 255 horsepower, but the plug-in hybrid model is not returning for now. What’s more, the chassis has been improved to increase comfort without any loss of dynamic capability, BMW claims.