Marea Wheel nut

I bought a Marea a few months back and I got a puncture yesterday, I grabbed the stuff out of the boot to change the wheel and when I went to take the wheel off there was one nut that was different, I take it that it's some sort of security bolt or something as my wheel brace that comes with the marea wont take it off. The guy I bought it from never gave me any heads up about security bolts so Im now stuck with a marea with a flat tyre

I took a picture of the bolt and if anyone could give me any advice on how to get it off I would be very grateful.

yes this is a locking wheel bolt, it looks like the standard fiat ones so you may be able to get a replacement key, if not a garage should be able to remove it for a few quid

Cheers mate, looks like I'll have to try and get a replacement key as I wont be able to drive it to the garage

Is the locking bolt key standard for all Fiats? My neighbour has a punto, would the bolt key for that fit the wheels on the Marea or are the different models all different bolts?

They standard fiat locking bolts are shocking. I think they make them out of butter. I rounded 3 after I got my car back from a bodyshop because they were on a bit tight. Mechanic pal of mines had a "grip socket" Managed to get them off no bother with it.