The gold standard for not-leather on automotive interiors is, as far as I can tell, Mercedes MBtex. The current version is good, but the stuff they used pre 1995 or so was so convincing that dentists and accountants would swear to you that the 100% vinyl interior of their S-class was infact all cowhide.<p>Leather needs to be taken care of; which conflicts with American expectations of how much maintenance one should have to do to a car (preferably, not even oil changes). This is why full-leather, full-grain interiors that cost four figures on the option list gave way to full-(top-grain)leather, then bonded-leather "seating surfaces", where the thin hide in question would be least likely to crease or split.<p>Rolls, Bentley, Mercedes-Maybach...still do the full-leather thing, mostly from cows they source from Scandinavia, where barbed-wire && tabanid horseflies are less common so the hides have fewer scars when they get to the tannery. It is assumed that yr. servants have a bottle of Zymol to keep the inside of your Phantom VII or Mulsanne in good shape.