The suggestion is that players can operate their own 'consumer' trucks. By this I mean food trucks, Ice cream trucks and trucks that sell merchandise and such out the side of the back - aka a mobile shop. These can allow the player to move their shop to markets easily, to just RP as a Mr Whippy and just for a bit of fun really.
Example of 'consumer' merch truck;
-Also players could own the classic hotdog and etc stands, probably using an AI to sell the goods because of the small job, but it would make the owner money.