If you think that's weird (it is)... weirdest thing I've ever seen on a car was an Energy Polarizer. Looked into bidding on a car with one fitted a few months ago but the bids went too high for mine.
General Motors actually fitted energy polarizers to a few cars sold with Peter Brock's signature (legendary Aussie touring car champion) down here in Australia. It aligned the molecules in the car thereby reducing everything you'd like reduced, increasing everything that's better bigger and gave driver and passengers a sense of wellbeing. Yes, all that with a straight face.
What is the weirdest thing you've seen on a car?