Been thinking recently that electric pop-out windows would be nice on a 3dr V300 - (Or a 2dr if you're called Adam).

There are aftermarket kits for the Goof mk2 I think for silly amounts of money. A little bit of research suggests you get them on a Seat Alhambra (all of them I think), and on a Beemer 3 compact 2001-2005. Anyone know of any others?

Bound to be some kicking about scrap yards - them Portuguese busses are getting a bit long in the tooth.

Chrysler voyagers-starting to appear in breakers yards or should be cheap off of Ebay US.

if you mean the rear windows popping out electronicly, you can find mechanisms on a Renault Megane Coupe. The switches could easily be exchanged with original el.mirror switches.
Since it is a Renault, it should be easy to find on scrapyards

Cheers Jos - do you know which series?

The phase 1 coupe's already had the windows i guess, but on the phased 2's i am sure of it.