Subsribing ladies as my SIL is looking for a pram & car seat/capsule.

I'm a bit confused so can someone clarify? We've shopped around and loved the City Select (I have the city elite, love it, but I fell in love with the select ). Reading the posts I might tell her not to get the bassinete just yet, but does a baby capsule slip into it????? What kind of capsule? She's looking for a car seat now and can't decide which one. I have the safe and sound meridian which is OK for my 11 month old DS but I'm not too happy about the reclining of it (DS used to have quite a few chucks when he was smaller, now seems happier in it). It would suit her to get a capsule to click into the pram and into the car.

Ta!