How to give away money in GTA V Online

The point of the feature is to enable one to one voice calls from inside the game(I have succesfully used this feature to talk with friends). It doesn't matter if you're in SP or MP. The reason why it costs 10$ is to add immersion and to act as a yet another money sink in GTA online.

It's randomness mixed with rank that's about it. The higher level you are, the better the stuff that spawns, but it's still to some point random. So you won't only spawn nice vehicles vs only spawning shit ones

taken from R* forum