I bought the Silvercross 3D when Merlin was born,it's the smaller and cheaper, I think ,version of the linear sleepover.It was lovely for a newbornOnly fault to it was he outgrew the carrycot very quickly and by winter he had to use it forward facingThere are a lot of pushchairs with a similar idea,fitting a carrycot,fabric or solid to a lie back pushchair,but the seat unit itself doesn't come off and turn round,which would be nice both to be able to see and chat to an older baby,and so he doesn't get blasted in the face by the wind.So with hindsight,I should've got the bigger one.And next time I will.Oh,rubbish shopping basket on the 3D,but it's still a nice pushchair.
I have also got two Gracos,I've got the tandem which I can't fault,and a single,the Graco Mirage.It's a smaller,lightweight version of the tour one(which I secretly want and may well appear in my house while hubby's at work one day).It is a lot cheaper,and a lot more basic,but I've had mine 7 years now,and it's still going strong.It folds flat,you can pick it up with one hand it's that light,easy fold.I bought mine without a seat,I already had one,but I've seen them sold with now.Big shopping baskets on these.If you're short of cash,and also if you're short of space in your car or wherever you store it,this one's a cheaper alternative.
Look for online bargains.A couple of years ago,I saved loads by buying a pushchair new from Germany.It was also a nicer colour than the one Toys R Us were selling.I also got a bargain on the car seat by shopping around on line.
Ebay's good too,but I haven't tried that for a pushchair yet.Kiddicare are a very good baby store,you can often get a bargain there.
Oh enjoy your pram shopping