Rocket League' update 1.79 has landed with full cross-progression ... If you're Level 1000 and Champion II on PC, and Level 500 and Diamond III on your console, you'll want to pick your PC profile ...

When I initially reviewed Rocket League on PlayStation 4 and PC in 2015, and Xbox One in 2016 ... that you can open if you decide to spend $1.50 for a key (or $1 each if you buy in bulk).