New 2018 Mercedes-AMG C 63 Coupe spotted in disguise

Mercedes-AMG has a wide portfolio of hot models on sale, so we're used to spying prototypes - and the latest to emerge is the facelifted C 63 Coupe. The BMW M4 rival receives a light refresh for the 2018 model year along with the rest of the C-Class range. 

The external tweaks aren't immediately visible on this test mule, but they are there. Behind the cladding we're led to believe there is a new two-bar horizontal grille design, while there's also changes to the air intakes and the rear bumper profile. New LED running lights will feature, although this prototype uses the old lights.

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The interior will showcase a redesigned dashboard and instrument panel, with technology and user interfaces borrowed (in watered-down form) from the new E-Class and S-Class. Expect minor trim upgrades also, while new colour and material choices will be available. 

While there's a new 2.0-litre diesel engine expected in the regular 2018 C-Class, the C 63's relatively modern 4.0-litre twin-turbo V8 is unlikely to receive tweaks. Power should stay at 469bhp for the base car and 503bhp for the S - though it's possible some chassis revisions will debut.

We'll see the updated C-Class towards the end of this year - possibly at the Frankfurt Motor Show - before it goes on sale for the new year. Prices may increase slightly over the current C 63, which starts at £63,475.

Are you looking forward to the new facelifted Mercedes C-Class Coupe? Let us know below...