As a millennial I agree with a lot of this. I was not looking at pony cars when I decided to upgrade from my hot hatch, but the reason I did is due to how special the GT350 is. Manual, FPC, track focused, heritage, CF wheels for the R, etc. I expect to see egg shaped EVs dominate the road in the coming decades which is definitely a bummer, but that's the direction the market and future is going. Enthusiasts however will always gravitate to a car like this, even more so than the GT500 honestly. 700 hp is great now, but these electric cars will literally be limitless on output. Just like what wildcardfox said/shared, speed is relative. What will determine values going forward will weigh heavily on the driving experience rather than speed. People will want a killer exhaust note when exhausts don't exist anymore. They'll want a manual when transmissions are gone. They'll want it to look the part, and have history behind it. The GT350 checks those boxes and more.I hope i.c.e performance vehicles are still a big part of the hobby, for a long long time.
But the owner age of these vehicles, and the fact that a very small part of the younger generations see, American performance cars as something to lust after. And lets face it, no matter what the person with an auction paddle in their hand plans on doing with the vehicle after they own it (drive it, pack it away in moth balls ) they buy because they have had a longing for such a model for a long time.
THe gt500 is a limited production car persay, but in the future the number of people that are part of the younger generations that those that own them now, are a small group that be standing with a paddle or on the phone with an auction staffer bidding. I think other vehicles will be the ones those people lust after, like they do now. For a lot of the under 40 crowd the pony cars are not even on their radar, so who know if it will be in 10-20 years when they are older. I know what vehicles/cars my kids and their friends like and wish they could have, and sad to say only a few have any passing interest in mustangs/camaro's even though they have a strong interest in performance cars/trucks.
Like I stated above I hope the hobby had a long life with i.c.e. powered vehicles. I know one thing I , know one knows what the future holds.