This hasn't been my experience as to how the classic car market works. Variants affect desireability and price, and range topping models can trade for huge premiums. it's the reason why one 1970 Barracuda will sell for $35,000, and another will bring $4,000,000, thanks almost exclusively to what numbers are on the VIN. Its also the same reason why your early 1970 model brings a premium in the marketplace over a 72, and a 69 in similar condition will be worth more than both. All things being equal, and putting sentiment aside, would you trade your car straight up for a 73? For a 69? For one of the first 20 cars? Just based on what I've seen over the years, the market would value each of these trades differently, even though in this example, they are all nearly identical and special 240Zs. I'd assert that the Z432 is not a 240Z - I'm not placing judgement here on whether it's ultimately a better or worse model (we are each entitled to our own opinions, and it's been my experience that you can rarely sway any enthusiast on their opinions on ANY make and model, so I don't even try). I'm just saying they are not the same car, and I've experienced that they are traditionally not valued the same in the marketplace, which until very recently, was almost exclusively in Japan. On the face of things, valuing any make and model of old car at more than "parts value" is a silly endeavor, yet there's a ton of people, including myself, who do it all the time.