The funniest thing about the Cybertruck is the windshield wiper. Not only does it ruin the science fiction ascetic by breaking up the flat surfaces, it breaks up the primary surface with a dumb squeegee arm. It's also a little reminder that not only were the first wipers invented in 1903, but that they were fitted to electric vehicles.
I think they used one huge wiper in an attempt to make it look innovative by just by virtue of being unusual.