Bouncy Feeling When Driving above 40 mph

Check your Struts, that's would be shock absorbers, you should probably replace them or have them looked at

Worn bushing in the steering system could cause steering play. It may be an issue with the electric steering itself.

iit might also be your hubs. such as the spindle or destroyed bearings. basically they what the tires attach to and they are the parts that rotate when driving if they are shot then they should be replaced immediately before they let go or anything

Don't you mean what the wheels are attached to. The tires are attached to the rim or wheel but that's great advice...