I am counting 8 in the world that we know of:

Two in Germany which includes the first V8 built by Startech/Brabus with a Brabus n/a 6.1 and the second V8 built by our German member MAXIMUSQUO with a n/a 55 and six US cars which includes 3 55K's, 2 500's and the Hemi. Let's get the US cars to the Dragon!