Is £16k an inflated price? I would suggest its a fair if not very reasonable price.
I'm not claiming these figures are completely accurate but looking at the production numbers of the total RHD M roadsters made it seems that 918 with the S50 engine & 79 with the later S54 engine are a close if not accurate number.
As this is the total of right hand drive cars made, some of these cars must have gone to other countries that use RHD cars hence reducing the numbers delivered to the UK market. I have seen varying information on how many are left as its obvious over the years some will have be written off, stolen etc, but its somewhere in the region of 67 S54's (the Unicorn cars) remaining, and 475 of the original S50's left, I cant say if that's UK or total numbers and these figures I am quoting are a few years old now.
This makes the cars reasonably rare in comparison to non M Z3's and a few other similar makes of roadster.
This is why they are and should be now worth a good price and if anyone wants one they are going to have to pay up as they will only ever become even more rare in the future.
Anyone want to discuss M Coupe prices?