These prototype pictured is still heavily camouflaged, so there's little more to tell from them than we already saw from the spy shots we brought you back in April. We can see the front end a bit better, bearing what looks like the same lower air dam as the C63 sedan, but everything save for the front part of the greenhouse is covered up in the swirly stuff.
While the photos posted on the Mercedes-Benz Facebook page refer to this as the C63 Coupe, the AMG post references the Mercedes-AMG C-Class Coupe. Either way, we're expecting it to pack the same 4.0-liter twin-turbo V8 as the sedan (as well as the AMG GT), likely to be made available once again in 469- and 503-horsepower states of tune. Affalterbach has also posted a countdown timer on its website, with 23 days left to go until the new muscle coupe makes its debut. So mark your calendars for August 19, and watch this space for more as the German automaker is sure to keep trickling out more photos, videos, and information between now and then.