Based on the performance figures of the car relative to its time.
Which is just as irrelevant as how much it cost when it was new to the people who want them
now. If that was the
only standard it was measured by, people wouldn't bother buying anything from that era but Z06 Corvettes, Vipers and 996 Turbos. If that was the only standard it was measured by, people would just wander into their nearest Chevy dealer and buy a Camaro SS.
Cars like the F40 that were the fastest car in the world at one stage, are deserving of being a collector car.
Ironically Ferrari sold so many extra F40s to people on the basis of them becoming collectible in the future that it took a while for them to actually become so and the people who bought them just to flip them took a bath on them.
Alternatively, ultra rare models (for example sub 500 units), where there is no other more common version of the car can justify a higher price tag because you cannot get anything remotely similar to it without buying one of the limited units.
This illustrates my problem with the thought process behind highly demanded car models. The Grand Sport doesn't really offer anything special and yet it has a considerably higher price tag.
Sorry to burst your bubble on this, but that ship hasn't been in port for at least the 25 years that I've read Automobile Magazine's classic car auction coverage. It hasn't been true for Japanese cars of this era either, since Zanardi Edition and NSX-Rs have regularly been far more expensive than regular NSXs. It's not even true for
new cars, as evident by how Porsche can easily spin up a limited edition 911 with a specific engine and transmission combination, and people want them so badly that they'll pay twice the price to scalpers for one.
And while it's certainly true that the person at the average car show wouldn't likely have any idea if I put a white stripe and the red hashmarks on
my Admiral Blue Metallic C4 Corvette (especially when I already have replicas of the wheels installed), the person who wanted a Grand Sport would thumb their nose at it because they want a
Grand Sport.
To me the Skyline was just famous because it was part of a culture.
The Skyline is not desired for what it achieved, but rather what it was a part of, which in my opinion makes it not deserving of its current market value.
Like the endless parade of numbers-matching Challengers/Mustangs/Camaros were starting around 20 years after all of those went out of production also were and have been to this day. People who grew up in that era are getting to a stage in their life where they are both nostalgic for the cars of the childhood, have romanticized views of the car culture from their youth (versus modern cars)
and are coming into a financial situation that they can actually act on it. It's the exact same reason that Fox Body Mustangs, of which Ford sold hundreds of thousands
each year for
fourteen years, have recently become cars that you can expect to pay 20 grand for a clean one; after spending over two decades being as worthless as any other domestic car from the 80s/early 90s.
It wasn't the best at anything, there are multiple versions of it, so even if you can't get one of the rare colour combinations, you could buy a different version for less money (GT, 25GT, GT-T, GTR, V-Spec, Nur, etc) which makes it less special.
Except it doesn't
really. Again: the endless parade of numbers-matching Challengers/Mustangs/Camaros.
If buyers took a step back and understood what they were paying for, maybe we wouldn't be seeing these extravagant prices for cars that aren't deserving of them.
The buyers
do understand what they are paying for; and what prices are deserved is what those prospective buyers are willing to pay for them
collectively. Not some guy on the internet who sees a widely desirable car go for a lot of money and thinks it doesn't make sense on a conceptual level. You repeatedly have peppered posts in this thread with how cars like the Skyline are overpriced based on a sliding scale of reasoning, ranging from "the performance was nothing special" to "it didn't cost nearly that new" to "they weren't that rare" to "it didn't stand out compared to it's competition" to "it's just people who remember the culture" to even just a blanket "it's a car that is widely considered to be overpriced in the first place."
Unfortunately, it's really hard to actually claim they are overpriced if mint R34s are
continually trading deep into 6 figure range while the cars that "should" be worth more (like, say, a 996 Turbo) are stuck in Nicely-Equipped-Camry territory. Skylines aren't overpriced if every time one of the Motorex cars shows up on the US market there's a bloodbath to get a hold of it. Skylines aren't overpriced if people want them so badly that they'll spend 15 grand to import R32 sedans so they can have a
Skyline when for that money they could have had the most flawless E36 M3 on the market. It's why Japan has had an entire industry for several decades taking cars that are no longer desired in Japan due to Shaken and exporting them to other countries. And with the entire
tide of cars from that era/circumstance starting to rise (albeit in wildly different rates), that people are willing to pay six figures for pristine R34s and A80 Turbos and NSXs isn't something that is likely to go away any time soon; and certainly not once the former are able to be easily owned in the US. I've said this before, but when the Evo IV V and VI are able to be sold in the US? I'm guessing the same thing will happen for those.
To be perfectly blunt about this, most of your posts on the matter are starting to come off as "Old man yells at cloud;" particularly regarding this specific car where there's
agreement that it's overpriced as a specific example and likely won't go for that much, but you feel the entire chess table needs to be flipped. It's little different from when Jalopnik would run a Nice Price or Crack Pipe article on something and people who weren't aware that the market for whatever the car was isn't the same as it was in 2005 or whatever get annoyed that it's actually valuable now.