It's the dealers' job to weed out speculators, Porsche itself can only do so much.
Dealers are the interaction end of the process, they are the one selecting the customers.
Even if Porsche add their approval for purchases it still won't work, as the dealers can supply bogus names to Porsche for the orders like Ferrari dealers do, order a car in a good customer's name but sell it to a completely different entity.
Something like this already happened to someone I know. A dealer ordered a 911R in a 918 owner's name without the 918 owner's knowledge, but flipped the car and Porsche found out, black listed the 918 owner acts they think he did it on purpose, but after some protest and investigation, the ban was reversed and gave him a 911R back. The dealer? Got off with no consequences. Dealers are too powerful for Porsche to offend. Especially in the US. They are untouchables.
Quite a few of the 918 owners in the US got booted off the VIP program because of the 911R. Did they flip their cars? Sort of, but all of them partnered with the dealers to do it. Greed from the dealer is the biggest motivator.
Why did the 911R went up in value by so much so quickly? The press. Blindly singing praises on the car, keep blowing the horn and whip out a frenzy. Add the fact that it's a limited production car and the perfect storm happened.
Porsche tried to cool it down by announcing the incoming GT3 with manual transmission and a better motor, but that was too little too late.
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