IF THERE was a world championship for new car launches, Mercedes-Benz would be up there on top of the podium.

The German maker has announced no fewer than eight new or revised model in little more than six weeks with most of them racing off the production lines of the company's AMG sporting subsidiary.

Latest to join the ever-growing AMG catalogue are updated versions of the Mercedes-AMG GLC 63 4MATIC+ SUV and Coupe which the company says have sharpened vehicle dynamics and improved connectivity.

Both the SUV and coupé are being given new, more distinctive headlight design and new tail lights as well as the company's MBUX infotainment system which now comes with gesture-control operation and AMG-specific functions and displays.

All models now come as standard with an electronically-controlled locking differential and the latest dynamic handling control system which now comes with a new drive programme for slippery conditions.

Cosmetic changes to the interior include a new AMG steering wheel and a new upholstery colour scheme in grey or black with yellow stitching.

As before, the latest models are powered by AMG's four-litre, V8 biturbo engine with power outputs of 476 or 510bhp, mated to a nine-speed auto transmission and permanent all-wheel drive.