Concept cars are a chance for car manufacturers to prove themselves as forward thinking, original and industry leaders in innovation – think of a concept car show as a fashion catwalk, except with more metal, oil and rubber. Actually, probably about the same amount of rubber.

With stiff competition every year to produce thrilling new concept cars, it will come as no surprise that designers occasionally succumb to the pressure, go a bit loopy, and end up proudly presenting their gleaming new design to a chorus of laughter.

Below, Vertu Lease Cars have compiled a list of the strangest concept cars that, thankfully, never made it to production. Prepare yourself, it’s going to get weird.