Embassy FX takes at bite out of Ken Block's block with some amazing seamless VFX.. Knowing them I wouldn't be surprised if this whole thing is CG.
I'm torn as the VFX and editing etc are great in this, but in this day and age of GoPro's and youtube stars, I'm disappointed that they didn't just do this for real.
BMW M4 - Ultimate Racetrack from The Embassy on Vimeo.
Ken Block, doing it for real. ( teaser from his Gymkhana 6 in San Francisco)