Five people, including children, were lucky to escape without serious injury after an Audi and Mercedes-Benz exploded into a massive fireball after a horror crash .
Eyewitness said flames were "shooting 30ft in the air" after the collision on the southbound carriageway of the M40 in Warwickshire.
Dramatic pictures show the inferno and the silver Audi car and Mercedes van covered with white foam after the flames had been extinguished by firefighters.







