All, I spoke to the trade team at the Turkish consulate in London.
They advised that I DO NOT HAVE TO remove an imported vehicle every 6 months, but that I cannot sell the vehicle, I can however scrap it if it becomes unroadworthy.
Also that I CAN import more than a single vehicle.
Worthwhile personal notes from me are, unless you:
1) Can link to authorative govt links and/or
2) Have personal experience of the topic.
THEN PLEASE DON'T give opinion based advice (unless an appropriate topic), purely as IMO there are enough 'forum warriors' out there that feel they have to say something, or express an opinion on something they know absolutely nothing of.
So to the email from the Turkish trade office (the second link is in Turkish) is as follows:
"Dear Mr Morgan
You can find all the relevant information about bringing your car to Turkey from the link below.
https://www.trade.gov.tr/customs-formal … d-vehicles
Also, please check below link about how to import a car into Türkiye.
https://gumrukrehberi.gov.tr/category/n … icle-guide
So, I shall be importing a little toyota yaris for everyday use and a mercedes SLC for high days and holidays 😀