how do I enter vehicles

how do I enter vehicles like a car or a jet?

Pull the handle and get inside. Please, you must be more specific. What you want to do is make a collide around the door and give it a radius of however close you want the player to be to get in. Then use an OnTriggerEnter function to give you the option of pressing ā€œEā€ or whatever you want to get in. Then use an OnTriggerStay funtion to get the the input of pressing E or whatever you want to get in. Then use an OnTriggerExit function to remove the option of getting in.