I knew you would pick me on that one Bob not up on my K,s G,s and t,s . As I said both of mine are black with identicle stainless rings and identicle centres all holes are the same as I bet the fake woodgrain one is also just don't know why if Holden took them from the GM parts bin they went to the trouble of changing the dish, just for driving position I guess.But I can tell tou that the Holden one is worth about four times what the Vette one is at least in Australia the brown one I had I sold two years ago for $1600.00 no sh#t