Most people want to own their own vehicle for whatever purpose. Of course, you can use it for a lot of things, but if you are going to use it for delivery then the best choice would be a truck since you can load it with a lot of things. You might see those business establishments using a truck to deliver whatever it is you have ordered. A truck is large enough to be able to carry lots of items in its compartment. If you are in the delivery business then you probably have a lot of things that needs to be delivered and the best option for you is a truck. Now, normal vehicle is already hard to park, but parking a truck is something else as you need to worry about body since it is too large. Of course, you do understand that you would be sued if you damage another property, but you could be sent to jail if you injured or killed someone.
This game recognize how vital parking a truck in a business and as such, it needs to be practiced. You need to make sure that you won't hit a thing since that would damage your truck.