I was reading a C&D or R&T review of a car with pop-up headlights years ago... I believe it was a smaller car like a 914 or the first MR2.
As I remember it, the reviewer said that he popped 'em up at 70 MPH and it was like hitting some kind of airbrake... like on a Dauntless SBD-5 dive bomber or something.
For those who need a picture:
