Daimler stopped development of combustion engines almost three years ago: https://electrek.co/2019/09/19/daimler-stops-developing-inte... . Volkswagen will not develop new combustion engines: https://paultan.org/2021/03/23/vw-to-stop-developing-interna... Opel (as part of Stellantis) is going all electric in 2026.

The combustion engine was let go some time ago.