Sorry, sorry I know this has already been raised...in parts though.
My car (a modified but rather stock looking balck with a red roof 1970 roundnose) used to have a bullet mirror on the driver's side. When I got it approx 5 years ago I replaced that with the usual Tex chrome convex shaped mirror (that unlike the bullet unit, one could actualy see out of). like here:
http://www.minispares.com/Product.aspx?pid=37029
When the car was repainted those holes were welded over and it has been sans mirrrors ever since. This looks good but making driving in busy traffic amongst 4WDs and buses suicidal sometimes. So need new mirrors. Over the past year I've acquired the better, original heavier type convex units (identical in shape to the modern tex but don't loose their chrome in a year) as well as the correct brackets to mount them where they are supposed to be mounted (at the top most and forward most corner of the door under the quarter vent).
But I also began to notice that the majority of original roundnoses don't have permanent side mirrors fitted and never had them originaly - so the clip on mirrors (the rechtanguar ones that clip on the door glass or the seam covers) seem more and more attractive.
SO basicaly wanted to ask for any opinions - are the clip on mirrors any good compared to the convex tex type? What about on the passenger's side? what about theft and vibration etc?