Stainless boot and bonnet lining, stainless scuff plates, stainless clad engine bay, stainless grille set, curved sun visors and wind deflectors, etc.
Above pic of custom painted Cobra with Stainless Grille set.
This might not be to the taste of a purist, but the question was about "custom touches". This was all done by a friend here in South Africa (Hennie Greeff) that calls his bussiness "Custom Cobras". The link attached shows more close ups of stainless customizing on Cobras.
http://www.clubcobra.com/forums/album.php?albumid=189