I have been wating for some smart brass to come up with the answer
the answer is
YES , cars are indeed magnetic.
When current flows through a wire an electromagnetic fiield is produced.
The body of the car is the (-) ground return path it is part of the electrical circuit.
So electricity flows in the body panels of the car when power is being used making it into a very weak electromagent.
But the magentism effect of course is VERY VERY weak.
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