So, instead, I bought some wind deflectors, with the idea that I can have the window open a little at night and a) passerby's won't be able to see that the window is open and b)adds a tad bit of security, as it's harder to get a hand in the window etc
Apparently, they also increase fuel efficiency as they reduce drag when the windows are open etc, however, I've not tested this as yet, so not sure how true it is!
|Wind deflector in place, window down|
|Window up, unable to get my hand in due to deflector|
|This shows the window open as above, but unable to see that it is open on this picture|