Next month at the 2018 Geneva Motor Show, Mercedes-AMG will reveal its standalone 4 door model, the AMG 4 door has been developed to rival the Porsche Panamera.
The car is expected to launch with the same 604bhp twin-turbocharged 4.0-litre petrol V8 engine, nine-speed automatic gearbox as the latest E63 S 4Matic.
It is also expected that AMG will also launch a more powerful version with over 800bhp and a hybrid version.
This model is expected to cost from £80,000 to £125,000 for the top-spec models with the 600hp engine, broadly similar to what Porsche will charge you for a Panamera.
The Geneva auto show starts on March 6.