@MIE1992 Question, what is the improvement you evisage the gameplay to have by making keeping these cars so expensive?
To have a tier of car where the prices becomes so vastly more expensive than anything else as such a steep rate means you must reach a point in the game where either, you have to tediousely grind to purchase them or the amount of Cr you begin to earn means everything else becomes immediately no effort to purchase.
How does that aadd to the enjoyment of a game where the economy is based primarily in offline transactions (entirely in GT Sport) and therefore the next car I purchase off the game impacts no one else.
Having a grind for the samke of making something take longer to achieve is really poor game design. If you naturally reach a point witohut it feeling like you are grinding to get there that is really good game design. The problem with such a steep Cr increase from the typical 1-4,000,000 Cr cars to the 10-20,000,000Cr cars is the Cr you earn from races does not scale with the costs of those cars. And if it did, then one you reach that point itn he game everything below that pricing tier becomes almost effortless to buy.
So scaling the effort to cost is fine art, you have to remember Gran Turismo is not an MMO, it's not a game where it matter if everyone has the fastst car or only the top 1% of players have it. The games balance will not be affected either way beucase there are always different races the require different cars and that fastest car probably won't be able to enter most of them.
Therefore making them faux exclusive is pointless, it doesn't really matter who or how many players get them, it just beucase a case of who has the time and patience to grind, grind, grind.