regardless of where it is bought or registered, if an engine can't rev past 5.5k, why would they put a 7k rev counter on it?
Anyway, take it for a drive, check the driver side door to make sure it says it's a 2.4JTDm and it will also mention the BHP (210) i think. Check the fuel cap says it runs on diesel, if not and it is actually a petrol, then tell them there listing is wrong.
There is no such thing as a 2.4 petrol in these models, before you ask.
Biggext petrol engine: 3.2 V6, next biggest: 2.2