Board Thread:Game Discussion/@comment-104.51.118.50-20160620015605/@comment-26249703-20160620095725

As JulzL said, the showcase discount is not obtained by unlocking the car, but rather by unlocking the showcase for the car (which is why cars featured in several series can have multiple showcase discounts - not really one-time offers!).

The confusion spawns from the fact that most of the time, the car is unlocked with its showcase and players will try to get the showcase discount the first time they encounter it