Peter Sellers was something of a petrolhead. One time, in the middle of the night, Sellers turned up at Spike Milligan's house. Sellers told Milligan there was a rattle coming from the boot of his Rolls Royce. So Milligan was given a torch and shut in the boot whilst Sellers drove around the block.
The car was stopped by a policeman, who heard noises coming from the boot whilst he was taking to Sellers. When he opened the boot lid and saw Milligan, in his pyjamas, holding a torch, the policeman merely said, "Oh. It's you."
This is Peter Sellers with a Ferrari 275 GTB which, presumably, didn't have a squeaky boot.