you may be able to figure out what your v.i.n. is based on what digits are missing. all of the u.s. smarts have "w m e _ _ _ _ _ _ 8 k _ _ _ _ _ _" and if it is a passion coupe it appears to be "w m e j 3 1 x _ 8 k _ _ _ _ _ _" , passion cabrio appears to be "w m e k 3 1 x _ 8 k _ _ _ _ _ _"- hope this helps.
regards,
ken