I made this cake last year for my son in law’s birthday. He will only drive BMW cars. He just loves them, so it was an easy guess for me, as to what type of cake to make him. It was two layers of chocolate fudge cake, with a whipped chocolate filling. Covered in BC frosting and fondant. I first airbrushed the fondant with silver color, before adding the rest of the logo. I also made the key out of gumpaste, which he saved.