Jim Henson, the creator of the Muppets, has always loved cars, and one of his favorites was his 1978 Lotus Éclat, painted mint green and stuck with Kermit eyes on the headlights (although they didn't stay there long as it was illegal to have them while driving).
Car-mit, as some have called it, became Henson's reminder of the difficulty he had convincing US networks to buy into The Muppet Show, despite the Muppets' success in children's programming. It wasn't until Lord Lew Grade, a British media mogul, called Jim Henson up and offered to launch his show in England.
A few years later, Lord Grade was phoning up Lotus and telling them to use a special paint for Car-mit so that it would match Kermit's green. Of course, that was too big of an ask, so they just painted it a mint green instead, which was just as rare. Later on, one of the techs for The Muppet Show suggested adding Kermit pupils on the headlights.
At one point, the Éclat was stolen and used in a bank robbery, although with its distinctive features, the police were able to quickly apprehend the criminals and return it to Henson. However, he had to sell the car due to the difficulty of driving it on British roads and issues with clearance.
It was replaced with a VW Rabbit.
(Image credit: The Jim Henson Company)