At least they're too rotten for restoration. But you can try it.
I'm not sure, if it was that car on the pic, but one car in a condition like this Opel was picked up and restored (pic from the German yard of the tinhunter-page):
http://www.icmesa.com/tinhunter/WHV/OpelRekordP2Cabriolet.htm

If the Swiss authority can get through to clear off that yard, the same thing will happen like over there:
http://www.icmesa.com/tinhunter/Houthalen/THAHouthalen.htm
This place is empty since the year 2000. Everything was crushed in the shredder, totally.
I'm very happy, that I could see it in 1999.