Mercedes-Benz design boss Gordon Wagener and his colleagues at Mercedes’ Advanced Design Center located in Sindelfingen, Germany have teased a new concept their developing for this month’s 2017 Pebble Beach Concours d’Elegance.

In a video posted to Mercedes’ official Instagram account, the designers describe the design as being an “icon for the brand” and a “big surprise.” They also briefly show a few sketches of what appears to be the wheel of the car and perhaps its silhouette.

The sketches also include the design for Mercedes’ Intelligent Aerodynamic Automobile concept unveiled at the 2015 Frankfurt auto show, which Wagener and his colleagues describe as being very different to the new concept.

Last year, Mercedes unveiled the Vision Mercedes-Maybach 6 concept at Pebble Beach, and there are suggestions that the new concept could be a convertible version of the Maybach coupe.

We don’t have long until we find out as the Pebble Beach Concours takes place on August 20. For more coverage, head to our dedicated hub.