A partially camouflaged prototype of the 2016 Mercedes-Benz SL has been spied up close and personal near Stuttgart.

A partially camouflaged prototype of the 2016 Mercedes-Benz SL has been spied up close and personal near Stuttgart.

The SL's design is getting a bit old in the tooth so naturally Mercedes-Benz is working on a mid-cycle revision for the roadster, but as you can see from the attached spy images the cosmetic tweaks are moderate at best. The white disguise on the front end indicates the most important changes will occur on the bumper, headlights and grille.

Moving at the back, the rear bumper is also getting a subtle nip and tuck while the taillights are almost undisguised and show their slightly different graphics. The interior wasn't hidden on this prototype which can only mean the changes will be minor so expect an update of the infotainment system, a more generous array of safety & assistance systems along with other miscellaneous novelties such as fresh upholsteries, trims and additional optional equipment.

A previous report indicated Mercedes-Benz will open the order books in December which means the facelifted SL will be shown before the end of the year. Deliveries are reportedly programmed to commence by March 2016.

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