Lightning does not travel from the sky to the ground, as it appears. Rather, it travels from the ground to the sky.
Lightning is three times hotter than the surface of the sun.
You are actually safe due to the Farrady effect in which the electricity disapates over the area of the car. This effect causes circles of electricity over the 'cage' of the car. This is actually the reason why many cows get electricuted in lightning strikes. Amend, Discuss, Correct Dallas' corner of Elm and Houston streets has a sordid history. The building completed there in November 1898 was struck by lightning and burned to the ground in May 1901.