If you buy a boxville and upgrade it, can you use it in delivery missions?

[Erke]

Hello post office deliveries are a pain in the arse, is there a way to upgrade the vehicles used in MC businesses, like you can do from CEO warehouses?

[Aethrys]

Nope. But thankfully, if you're charismatic enough, you can convince 7 other people to work to make you money. Which is at least 4 dedicated guards in combat vehicles of your choice!

[Erke]

Yeah thanks to them that's how I try to deliver them, but most of them if not all, get disconnected mid-mission, then I try to deliver as much as I can...Yeah real nice days...