Because of the insanely high value of the Ferrari 250 GTO, which the last sale in auction was 70 million, and they are worth a lot more than 20 million. And maybe because they also plan on adding other ultra expensive cars, which actually there are not that many which are above 20 million but they do exist.
I've been seeing the GTO brought up a few times this week, so I'm going to attempt to calm these theories about the car coming to GT7 with a 20 million+ cr. price.
The specific car you're referring to is 4153 GT, & it was never sold through auction. It was a private transaction that happened in April 2018 & the agreed upon price was
not $70 million. The actual price is not known, but historians in the know can share it was not that high. The highest priced paid for a 250 GTO at auction came later in the year, 3413 GT @ Monterey through RM Sotheby's with a hammer price of $48,405,000.
Given the other cars in the game that are going through the Hagerty pavilion, those prices are more in line with how the auction market is evaluating the cars, not private transactions that can always be negotiated behind their closed doors. And with a car like the 250 GTO, the public market generally only has an idea of its value based around the last one sold in public, so today, 1 could start fairly easily at $50,000,000.
However, as I've said in another thread, PD does look like they'll take some liberties with how these cars fluctuate in their online world & therefore, the pricing will likely not be a 1:1 replication of real world markets. Some cars in the game are already well under-valued by their real world estimates (like the Supra GT500), so I see no reason that when PD throws the 250 GTO up for grabs, it wouldn't fall more in the realm of 20-30 million credits at best.
I personally think the reason for change was because an issue highlighted was these cars are priced very close to or at the cost cap, and without folks knowing when the cars would come back around, players might be stuck at their 20 million cr. cap waiting for the F1, 917K or similar priced car to come around. Raising the cap to 100 million cr. more than allows for them to save/grind for these cars and still make money for other cars in the mean time. Any car being priced over the 20 million cr. limit as a result of this increase, I don't think will be by much, if at all.