My idea is something that can detect the ground (or anything really) at an adjustable height and can be connected to stuff like engines, thrusters, hinges etc.. So that you can make stuff like hovercrafts. Also some logic blocks that can also be connected to parts like thrusters,engines,hinges so you can make automatic stuff like VTOL automatically turning when it reaches like 3,000 feet for example. There are a lot more possibilities if you add these features like AI cars so definitely add these features(3 VOTES)