had a chat with my local parts place and we had a chat about the zetec platinum's and we were in agreement that they were great plugs, he also told me of the newer platinums with 4 electrodes and that they would fit the 2.2 as well but they cost 19 quid a plug, difference is they last 3x times longer than the standard platinum's that last 10k
i am dropping my new vxhall plugs out and putting platinum's back in as I defiantly noticed a difference in my idle and take off from idle