Curiouser and curiouser !! I wasn't expecting that !
Thank you for the new information. According to the seller, it is not registered in the UK ! When it was previously for sale i managed to obtain a photo of the engine compartment, which clearly showed an SC engine with a blown water pump!
So, clearly the original TC engine has probably blown and been replaced with an SC engine of unknown origin.
I am inclined to wait for a response from the seller and depending on the reply, consider going and have a look as the car is about 50 miles away from me.
Adrian