Mercedes is working on a successor to the SLS along with a new 12-cylinder engine to power it. To be clear, the GT will remain top dog for some time to come, and that lineup "will expand," we're told.

First introduced in 1987 in the 750i, BMW points out it was the first of the modern German luxury sedans to use a 12-cylinder engine – Mercedes-Benz and Audi didn't offer such an engine in their ...

The GLC’s interior exudes luxury with high-quality materials, a sleek new dashboard, a 12. ... in Mercedes’ lineup these days, power is derived from a rather impressive four-cylinder engine.