With no need to house a big engine under a long hood, electric pickup truck designers are getting creative with shapes. There’s Tesla’s wedge-shaped Cybertruck, and Amazon-backed Rivian is planning to put a trunk where the engine would normally go.With no need to house a big engine under a long hood, electric pickup truck designers are getting creative with shapes. There’s Tesla’s wedge-shaped Cybertruck, and Amazon-backed Rivian is planning to put a trunk where the engine would normally go.