I am bidding on a First Wheels City Twin on ebay but it doesn't have a carry cot. Have found a carrycot on Gumtree that says it fits First Wheels City Twin Elite. Does anybody know the difference between the normal version and Elite? I know the single carrycots don't fit the double buggies. From the photo the carry cot is definitely for a double but will it fit the non elite twin chassis? I am hoping the 'Elite' thing was just a cosmetic trim update? Can anybody advise?