User blog comment:ShinnyShin/Porsche! What are you doin?! Porsche!! STAHP/@comment-27736210-20170717161727/@comment-27980511-20170827181555

Not only that, but I've seen posts where not just accounts were broken but several players lost whole collections of cars! It seems to be happening more often with the recent Motorcycle Update.

I couldn't really tell for sure but it seems like the aim is for Gameloft to get rid of all the Porsche-based look-alikes. It may quite possible be part of some kind of deal with Porsche, so unless you were able to get those cars prior to the update, you're out of options