Well I was thinking. If you buy all of the Walnut Extended Leather pieces from a BMW Z3 Coupe and I put them into an M Coupe myself, my cost (which is wholesale) is about $4500. Yikes. For $4500, I can buy a decent Juki Leather Sewing Machine and get 2 hides of Spinneybeck premium leathers.... an $18 per square foor suede hide and a premium black leather hide. More than enough to cover the car. Plus, I get a one of a kind interior and the experience.