A blonde woman is driving a Porsche and she sees another blonde woman with a Porsche that has broken down on the side of the road.

She stops to ask what's wrong.

The owner of the broken Porsche said, 'I just had a look under the hood, and while I was driving somebody had stolen the engine.'

The other said, 'Oh, don't worry, I have a spare one in the back of my Porsche.'