I know. Well one way to find out, I'm going to look at it tomorrow. Is there any sure fire way to know if it's a Spec C (apart from only being able to get 50 litres of fuel in) stickers can be brought, roof hatches cut in, boot carpets removed etc etc.
Found this vin decoder for Subarus, I will check it when I get there, or ask them for the vin number before I leave, but haven't got a Subaru vin number to try if it works, also may only work on certain country cars ie not JDM ones!
http://www.vindecoderz.com/EN/Subaru