"WTF is that thing?", you ask? "A Tim Burton frying pan?, you say? I say that too. It looks like maybe a mirror or something on a ball-jointed arm. It's unclear if it goes outside or inside the car, but it gets screwed to the windshield frame. Drilling into your windshield frame must have been a real hoot, never knowing if you're drilling into the edge of teh windshield or creating a leak. To the Google!
You can still buy similar products, as it turns out.
It seems simpler to just have the flippy sun visor things that are now standard on all cars. Those are a simpler solution to the problem of sun glare, allowing you to get them out of the way when you want to. I don't know if cars that old enjoyed our modern sun visor technology, but I'll bet our Alert Commenters Steve Miller or Craigf know. Gentlemen...? Between sun visors and the darkened strip at the top of your windshield, we don't really have any reason to screw giant pieces of aluminum to our windshields any more. Of course, if you tale that visor off the front of your car and mount it to your trunk on stilts, you've got a wicked badass wing, which the modern retard doesn't even think to question... even though his car is a front wheel drive Celica and has never had a problem with rear wheelspin or oversteer.