I played the Ps4 Rocket League in 2017 and also bought the Nissan Skyline GTR R43. Since I no longer have my Ps4, I play on the PC and since it became Free2Play on 09/23/2020 I want to play it again. I'm also connected to my Ps4 account, got all items, etc. Back, except for this car. Is there a way to get it back?
No. Since you purchased this for real money, it is only available on PS4!