It is almost midnight, and the highway is deserted. Off in the distance we hear the keening of a finely tuned sports car, which grows louder as the car approaches. At first, it is just a dark mass in the night. Suddenly, its finely sculpted lines and gleaming paint work are illumined by the moonlight, and revealed is the thing of artistic beauty. Then, without warning, one of the dreaded sounds or sensations a driver can experience - a tyre blowout...