That's not even close to true. There will be burn marks, holes in the metal, and metal spatter at the entry and exit points. Welded metal near those points can separate. Metal components that aren't bonded to each other will have arcing. If the lightning travels along wiring, it'll be burnt and there will be arcing on the body along the length of the wire. Ferrous components will often become strongly magnetized depending on where they were along the path of the lightning. Greased assemblies such as wheel bearings can arc-weld solid. Electrical and electronic components will either completely stop working, or be intermittent and erratic. Wheels and tire ply wires can be damaged. A lot of this damage will be hidden at first, and only become evident as weakened components fail. In short, if you have a modern, electronically controlled car that is struck by lightning, it can be uneconomical to repair. This of course won't stop your insurance company only paying out to fix the scorch marks if they think they can get away with it.

The tires do not prevent the lightning from hitting the car. Lighting shooting through the air, while looking for ground, is not going to change direction just because there is rubber hidden underneath all that metal. What will happen when lightning, or a power line, hits a car is that all the metal in the vehicle will remain electrified until the electricity finds a way to ground. The tires actually keep the electricity in the car by being the only part touching the ground, but not being conductive. The reason that people are always told in school that the safest outdoor place to be in a lightning storm is inside of a car is that the car will trap the electricity, and as long as you avoid touching any of the metal in the car, or getting out of the car before helps arrives to ground the vehicle, you’ve prevented yourself from becoming part of the circuit.

that's why when I get struck by lightning I jump. Winner!

You've ALL been taught wrong. You're relatively safe inside a normal car when it's struck by lightning because the car's structure acts as a Faraday cage and the lightning passes through the metal, not through you. As an insulator, rubber is roughly on the same scale as the air that the lightning just passed through. Half an inch of rubber that has hundreds of metal wires running through it is no barrier whatsoever to a lightning bolt strong enough to pass through thirty thousand feet of air.