I think limiting a number of exotic cars would make a good way to increase rarity and prestige, if there’s only 10 ‘buggati’ equivalents then they would hold their value and rarity. This would make car auctions and trades actually useful.
as it is with real life, certain cars only have limited numbers produced by the manufactures to increase price and not flood the market, devaluing them.
I disagree with the admin rule, unless it’s reasonable to assume that the car was obtained through the rule breaking.