Watch the last big car chase scene in "Ronin". This is the chase scene in Paris where they go through the tunnel, go the reverse direction on the freeway, etc. (I thought this movie had pretty awesome car chase scenes, by the way!) Anyway, watch Diedre's window. It changes from being up to down to in-between throughout. Make a choice! (I think this was to get the effects of her hair blowing in the wind, to let her lean out, etc.) But it doesn't seem like she'd have the time to play around with the window adjustment while driving like that...