Looks like a picture taken five days ago with a 1D3 and zoomed in to 105mm at f/4.0.
...that's all I got... (you can tell from the pixels
I would say NOT an M car, but leaning towards 4-series coupe or cabrio in M-sport trim. Though that vent is confusing me... I would more expect that on a 1 or 2 series.