I have a bit of a tricky question but I figure if I don't ask I'll never know! I have a Childcare Discovery Grande Taurismo Collezzione 4 wheeled pram. I'm not sure how old it is, but my aunty had it as a spare for her grandchildren who are 4 and 7, so that gives you some idea. I was just browsing on ebay and came across a removable toddler seat that is designed for the Childcare Trio or Trilogy 3 wheeler. The seller says she used it on her Baby 1st 3 wheeler and when she bought it she tried it on a few other 3 wheelers in the store and it fit them all. I am just wondering what everyone thinks the chances are if it fitting my older 4 wheeler?! I've got the measurements from her and it is the right width. And having looked at the photos of it on ebay and other web-sites I think the bottom mount would be right about where the footrest is. DH and I are on a budget and are planning another baby in a couple of years, so it probably seems like I am putting the cart before the horse. I just don't want to waste my money if it doesn't fit, but if it does it is a real bargain. The pram we have is just right for our needs as I do a lot of waking both in town and on a farm so I don't want to have to replace it unnecessarily in a couple of years!