Mercedes M256 engine
The 3.0-liter inline 6-cylinder engine of the Mercedes M256 has been installed by the company since 2017 and used in their most powerful and expensive models, such as the S-Class, GLS-Class, and AMG GT. There is a version of this engine with a single turbocharger and an additional electric compressor. The R6 engine lineup also includes the M103 and M104 engines.