No way~~~ The original mission is like this, you have to do the mission where you can take up assets first after that, go into the west island gate and you will see the ice cream factory, go over there and buy it. After that one will be parked there at the ice cream factory gate. Get in and press shift to start selling it, stop while selling and someone will come and buy it. There will be a police star! Don't get out of the car until you've sold less than 50! Otherwise, you'll have bought nothing, and be careful not to get caught by the police, so you can sell again after the star is canceled. After you sell 50, the ice cream factory will make a profit for you. At the same time the door there is still an ice cream truck, you can always go to sell.

(Note: Mr. Whoopee that is the ice cream truck ~~~)