As a lot of people have already said, I think the game could benefit greatly from having a goal for the player to work towards, as well as some incentive for players to not just make money printers using the car factory and a collector. That being said, this game was definitely more ambitious than a lot of games I've seen so far so well done. I also haven't seen anyone interpret the theme as scaling up a factory/business. Overall I think you should be proud of what you made, especially for a first jam.