Mercedes will bring a new showcar to the upcoming Pebble Beach Concours d'Elegance later this month, which has been teased on the automaker's Instagram account. Very little is shown in the brief video filmed at the company's Advanced Design Center in Sindelfingen, Germany, during a meeting discussing the design of the mysterious concept car. But chief designer Gorden Wagener describes the car as "an icon for the brand," and promises it will be a "big surprise." Color us intrigued.

Details are very scarce for now. The designers say the new concept car will be "very beautiful," while showing a sketch of the car's elaborate wheel design. Other sketches and scale models seen in the video show some of Mercedes' previous concept cars, such as the futuristic IAA concept which debuted at the 2015 Frankfurt auto show, and the Vision Maybach 6 Concept introduced at last year's Pebble Beach Concours d'Elegance. The fact that sketches of the IAA concept are prominently shown in the video suggests it inspired the design of the secret concept car, but Wagener insists that the "front end will be quite different."

While the camera focuses on the concept car's wheel design, you can spot another sketch on the table showing the profile of a red coupe with short overhangs, a massive hood and a sloping roof. The striking red paint and raked roofline looks similar to the four-door GT concept revealed at this year's Geneva show, which hinted at Mercedes' future direction. It's also a lot smaller than the Vision Maybach 6 concept, suggesting that it's most likely a sports car concept. Joining the mysterious Mercedes sports car concept at Pebble Beach will be the breathtakingly beautiful Aston Martin Vanquish Zagato Volante and the new BMW Roadster concept previewing the upcoming successor to the Z4.