Lightning is generally strong enough to travel through or around the rubber tires on a car.
According to the Boston Museum of Science, your tires would have to be solid rubber a mile thick to actually insulate you from a lightning bolt.
Does that mean, then, that you should avoid your car in a thunderstorm?
No, the good news is that your car is the safest place to be if you’re outside during a storm, the lightning will most likely travel around the metal shell of your car and not do any damage to it or you.
That is, if you have a metal car and don’t park under a tree or touch the metal.
The bad news is that if you have a convertible or plastic car, or if you touch the metal skin of your automobile when lightning strikes, you may be in for a profoundly shocking experience.