It started a short time ago.
This was the first (if I remember correctly) car that I ever bought on a special discount offer (at a 40% or 45% discount). At the time this car was far above my level of progress, so it was a very big step up in performance. (I do not know how it is now but back then it was possible to buy the car with this sort of special offer even if the car had not yet been unlocked by progress in the game, and once the car was owned any series in which it appears was unlocked.) Driving this car was thrilling, fun and a sheer pleasure. It still is one of the most fun to drive cars in the game, even though the game is now stale and there have been about 100 cars added to the game since then.