Well actually, he went 2 times platinum his first album, how he's aiming for 4 times platinum as said in an interview. It has nothing to do with the rims themselves, just the number. Although it probably simply just symbolizes how he stepped his game up or something.

Nonetheless Game fucking sucks, my friend is with that black wallstreet shit, so when this drops dickriders will just hop back on for another session regardless of recycled covers.

He's trying to pull a Nas btw, like how Nas did it with Illmatic and It Was Written.