AFAIK the keys for the car are coded exactly the same but have a difference of serial applied to them so as allow personalisation of settings- my focus can programme keys seperately so that different drivers can set personal settings for steering and warning tones etc.
I have had replies from two locksmiths. One has quoted:
'We can provide you with a working duplicate key that would start your car. This however would be a non remote key. It would also be a clone of your existing key therefore the car would not recognise it as a 2nd key.'
I am confused by 'the car would not recognise it as a 2nd key' - can anyone explain this?
What the locksmith is basically saying is that the keys will be the same serial and settings so they won't be recognises as two keys to enable programming of further keys yourself.
Personally i think they're talking twaddle so you'd be inclined to go back to them at a later date if you wanted a third key.
Guy that did my car didn't need any keys other than to open the door and programmed the key via the OBD port.
Not cloned but authorised to the car.