For a long time we've been planning to add sheet metal to the game. It wasn't an easy part to do so we ended up skipping it many times. But finally I dare to write about it, because it's already working quite well :)
At first glance the sheet metal looks like a very simple addition to the game but I think it's a huge improvement. It enables you to create neat designs and way more practical scoops and other transporting stuff. To make planes you don't have to build dozens of steel beams anymore. That also decreases the weight of the vehicle and of course increases the durability.
I'm very excited to see what kind of designs you'll make when we get this out!