Unveiled at the Los Angeles motor show in December 2017, new CLS comes with one petrol and two diesel choices.
A new six-cylinder 285PS 350d and 340PS 400d both offer CO2 emissions from 148g/km.
The CLS' chassis and technology is carried over from the latest E-Class model, including the dual-screen instrument panel and dashboard display.
Four-cylinder diesel variants with lower emissions are expected in 2019.