Replacement fuel cap??

Has anyone bought one? Any ideas?

I'm currently sporting a plastic bag with a cable tie - not very road legal!!

http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_190708_langId_-1_categoryId_226201

although I think Ebay they are about a quid or two.

I've got one like that but it doesn't fit at all, there isn't enough lip for it to bind against

I'm going to try this one as the dimensions seem right

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=170458381589#ht_2453wt_1141

If it helps Helfrauds offer two locking caps both £16.99 one they say fits 90% of cars the other is for escorts/fiestas and I have just gone out to the car and van and I can confirm that the escort cap does not fit the van, so you could try the other as only 49p more than ebay and if you get yourself a trade card it will be less.