No worries, it was worth a try . There are some Titaniums out there with the dress up kit and different wheels which look just like a Zetec S, just without the sports suspension an maybe a different engine. I'd be careful looking at one for £5,500 though, the Zetec S retails for more than the Titanium so that is a very low price. They could be trying to hide something so definitely do a HPI check (costs a few quid), and maybe pay for a mechanic to check it over before you hand over any money, if you think it might be too good to be true. I mean I could take my car to WeBuyAnyCar and they would give me about £5800 - £5900, so you have to ask why is a similar Zetec S being sold for less than that?