I think it's ridiculous that I've been playing over 3 days, and I still have 5 gameplay lootboxes left to unlock. There needs to be a way to increase how fast you get those credit cards.
Figured out what to do - don't use the same part for different cars. Once the play evened out for me, I have to say, this is a great game! The time it takes requires you to actually put it down once in a while, but still fun enough to come back - well done.
While doing multiple car production, I've noticed that every now and then production of a part stops halfway while there's enough room for more parts and more cars and doesn't keep going until I tinker with worker distribution. Is there any way to avoid that?