Cell Phone Danger?

You hear all kinds of things about cell phones these days? But we are wondering if they are safe in a car during a lightning storm. A couple weeks ago, a young man was electrocuted in his car during a lightning storm. My husband had always thought we were safe in the car because it is grounded by its four rubber tires. Is it possible that the lightning followed into the car to his cell phone? If it can do that in your home, why not in your car. I wish someone would look into this and see if it is possible. If it is, everyone with a cell phone in their car is in danger of a deadly lightning strike.