New spy photos have emerged showcasing the next-generation Mercedes-Benz CLS-Class undergoing a bit of fair weather testing.  Unfortunately, the four door coupe is heavily masked with plenty of false panelling, so distinguishing its various design elements is still an impossible task.  Parts of the front grille, headlights and tail lights, are however, a little more clear than they've been in the past, revealing a few subtle hints about what lies in store for the model.

To see the full Mercedes CLS spy photo gallery for yourself, keep scrolling to see a sampling (click any photo to enlarge), then head over to alVolante.it for the full collection.

Enjoy ladies and gentlemen.

[Thanks to Elisabetta for the tip.]