The car is efficient enough for it to do something (20-30 miles a day in summer if I remember), but yes it’s mostly marketing and they say as much. “Solar electric car” sounds a lot better than “this car is pretty normal but it’s super efficient”

Not a metal tree, but they do impale things on thorns and trees.

Fun fact: your left eye doesn’t go only to your right brain. The left half of your field of vision in your left eye goes to your right brain. Same with the right half of your left eye, and your right eye is split up similarly. How nuts is that?