There are three seat combos which will do exactly what you're saying, but they're not cheap.
Cybex Cloud Z + Sirona Z - about £600 for the lot (£200 each for infant seat, base, and toddler seat)
Recaro Zero 1 Elite - £400 - (Compared to the cost of separate seats, actually, this is OK, but a lot to spend out in one go.)
Recaro Salia Elite - £500
I would also recommend thinking more about whether you really need all of these features in one package. Generally with car seats, if you buy one seat to do several jobs, you compromise somewhere - safety (thankfully not with these models, they are all very well rated) or convenience or practicality or something. They all sound like useful features when you're sitting there expecting your firstborn, but much like the all-singing, all-dancing pram that you ditch as soon as the baby can sit up for something you can fold up and sling in the car boot, you might later look back and realise something else would have been more practical.
Just off the top of my head, the Cloud Z is very heavy, and the Zero 1 is very high up so can be tricky to get into the car. I don't know anything about the Salia but it's a similar design to the Zero 1.
Important question: Do you think it's likely you'll want to have another child within about 3 years of the first? Have a think about what seats you would need for two children of various age gaps.
Important question 2: What are your thoughts on extended rear facing/what seat do you imagine your child will go into after they outgrow this one? It can sometimes help narrow things down if you start with an imaginary 6 year old and work back a year at a time until you get to newborn. I can explain more if you like :)