You're comparing a hyper limited car made by one of the most iconic boutique/super car makers of all time to a mustang?You mean like this car? https://classic-grid.com/ferrari-250-gto-nick-mason-1962/
And not for nothing, it still took 30 years before the car started to be financially potent compared to if he'd just invested that money in stocks/bonds/real estate. It was until 40+ years later that the article quotes millions. And that's for a VERY bespoke car from a premium brand/name with very limited numbers.
I'm sorry, but a 1 of a gazillion from Ford motor who sells millions of cars that middle income people can afford is not the equivalent to a classic Ferrari.