Bloke in a mini 850 breaks down on the motorway. He's standing on the hard shoulder, scratching his head, when a big Aston-Martin pulls up and its owner offers to tow him to the next service station. So they tie a towrope to the mini, and off they go.

Five miles down the road, a Mercedes overtakes the Aston, and its driver, striken by road rage, forgets he's towing the Mini and stamps on the accelerator. The Merc and the Aston hare down the motorway, neck and neck, at about 150mph, with the poor terrified mini owner beeping his horn and flashing his lights. They pass a Traffic Policeman, who clocks their speed and radios into his station.

"Sarge, you won't believe this - an Aston and a Merc doing 150 neck and neck with some loony in a mini trying to overtake them both!"