Skateboard is relatively thin. It is much easier and lighter to create stiffness on a tall structure. Not sure if canoo requires some stiffness from above or if it is good enough on it's own. If any manufacturer can throw their own body on the skateboard, you could have very very different vehicles with shared underpinnings.I don't know why more car makers don't use the skateboard approach. It's always seemed like such a waste to have entirely different underpinnings/drivetrain for different models when a single skateboard powertrain option could simply be mated to different bodies placed on it, simply altering things like ride height and mounting points to fit different cars vs trucks, etc. With electric propulsion it would seem like, done right, even wheelbase could be altered on the skateboard as needed. Yes, I know some cars are built on shared platforms (Volt and Cruze for example), but there's a lot more that aren't when it seems like it realistically could be done all whilst saving a lot of money.