A man breaks down on the motorway in his 3-wheeled Reliant Robin. Just then a fella in a Lamborghini passes and stops to help. "I'll give you a tow to the next garage" says the man, "but if i'm going too fast for you, just flash your lights and I'll slow down"
So off they go, the Reliant in tow.
They're driving along, when a Ferrari whizzes past, doing 150mph.
The Lamborghini driver decides to pose, and race the Ferrari, and proceeds to put his foot down.
A mile down the road, a policeman on his motorbike radio's through to his colleague. "You won't believe what I've just seen. A Ferrari doing 150mph and a Lamborghini racing beside him also doing 150mph.
Whats so great bout that?" asks the colleague
"Well," says the copper "There's a Reliant Robin also doing 150mph, flashing his lights, trying to overtake..."