Question on the light

Moin and a Happy New Year to all of you! My son has shown me a video with a Saab 9000 and the follow me home light, which concerns when closing up. (http://www.youtube.com/watch?v=U2JUB6sepIU&feature=related) Is this really like this or was it made around there. At 9-5 you couldn’t do something like this, could you? Greeting saabfan94