Today I saw a 75 Z28 listed on ebay for sale. Talk about rare. Chevy didn't even know they made one, now that's rare. Actually I feel for the guy he probably bought it thinking it was a Z. Thinking about it though I used to have a 74 Z28 and if Chevy would've built a 75 probably custom wheels and any V-8 would've qualified the car as a Z by that year with the gas crunch and poorly styled cars of the mid 70s. So he probably isn't far off!