Not sure it this is the right place to post.
I was given a secondhand Uppababy Vista and I had bought a Joie ILevel car seat. While they aren't listed as strictly comparable I saw on a website that the ILevel would fit in any pram that had Maxicosy adaptors. In theory it's fits, but at a very odd angle, when the seat is in the 'lie flat' position the baby would be lying at a 45 degree angle rather than horizontal.
Anyone tried this or got a work around?