Suneo shows off his father's new Porsche car and invites Shizuka and Gian for a ride on it when he gets his driving license in a few years' time. This incites Nobita to learn how to drive a car without getting a driving license. Remembering the Mirror World incident, he gets Doraemon to take out another mirror to go to the Mirror World and practice driving, only this time, any action in the Mirror World will be reflected in the real world.
Nobita invites Shizuka for a spin in a car used to practice driving, but Gian and Suneo also follow them to the Mirror World and catch up with them using the Porsche car in that world, with Gian going behind the wheel. They engage in a race, but Gian and Suneo end up damaging the Porsche. Thinking that the Porsche in the real world will not be destroyed, Suneo goes back with the others, only to find it destroyed as well.
