Seems pointless to me. It will be fast on a track, but it will tear the Hell out of the tires, brakes, and suspension due to the weight. It won't be comfortable on the street AT ALL with those seats and presumably rock-crusher suspension.
I totally don't get the point of track-focused luxobarges. If you can afford this, you can afford a fast enough sedan for the road and something that will actually be great on a trackday. Or better yet, something luxurious that can TOW the trackday toy to the track.
Love the paint, hate the bronze accents.