I have a spare pair of genuine Calypso Red M-Tech mirrors (as fitted to 850CSi and 840Ci Sport). They are in excellent condition, and really transform the look of the car. They are for a right hand drive car -- they will fit all 8 series, but the right side mirror is slightly longer to give a better angle for the driver.
They include heated anti-dazzle glass too.
Photos to follow, as I can't get my camera to take a decent photo indoors even with the flash, the colour looks very washed out.
I am open to offers on these. I paid around £300 for a pair of these a few years ago from a guy called Tee who used to frequent this board (think he has since moved on) and it cost me around £100 to have them painted as they were the wrong colour for my car. So there could be a good bargain here for someone with a Calypso Red car because you won't need to paint them.
Anyway I will leave them up here for a while before putting them to the dogs on fleabay