you can also spawn at warzone air, vehicles that are blown up are back in your garage on restart, hummingbirds are cheap af so you buy 20 and you're good, and they do warzone which gives you up to like 200-250k (depending on the amount of people on cap (average is like 100-110k)) per x seconds and per kill (warzone also happens every restart if there are 50+ people on) you can also make over 2mil in a 20 minute run.
basically saying cartels on reborn are sick b/c you can basically fight and never run out of money (unless you're a full blown retard)