I paid £399 for a 2 year mechanical warranty (i.e years 4 & 5) including breakdown cover.
Although I bought it from the dealer it's not VW (I think it's from Inchcape, who own loads of main dealers inc. my local VW dealer).
Maybe it's not as good as VW's warranty but it's still unlimited claims up to value of car and including a decent breakdown package it seemed to be good value to me.