The Car Factory:

price 15,000 coins, produces goods, available from level 30 (or earlier - if you pay for it), size 6*6, can be placed anywhere;

You can buy this building in the shop for coins.

You can only have 7 max.

Again please notice you can't make these items ahead of time, only when a quest asks for them, they don't go to your inventory, however this is a good way to make goods.

You can see how many goods you get when you make each item

There are upgrades for this building Click here for more information