most are delimited upon entry to the UK mine had full UK MPH conversion, foglight at rear built into original lighting unit, and definetly went above 112mph! (yes you will find some dont have this though lol)
in answer to the original question - have you viewed and driven both cars?
pictures, descriptions, stats etc are really worth nothing until you have checked it over yourself!
i had a jdm 53 reg and it was immaculate and drove extremely well, got a 54 plate UK gt model now also drives lovely but needs couple of tiny bits doing
just goes to prove UK cars arent always better, but neither are the JDMs - althought i wouldnt let the fact its a JDM put me off buying it