Hi there,
I have a Mini and a two year old.
We have a 3 wheel buggy which fits the boot, when one of the rear seats in folded down.
So, with only 1 child, you shoud certainly consider this option. Just go to shop with your mini and try them out.
Besides that one, we have a Mclaren buggy (it has 4 wheels
That's really great and fits the boot. We used that one since our son was 3 months old. It can be layed horizontally so that's okay.
As for a car seat, almost any maxi cosi fits. We had no problem at all.
For a car seat of group 2, we preferred Römer King. That one fits very well.
And now we moved on to group 3 car seats, and we also bought a Römer , Romer Kid.
My advice: just go te the shop and fit the buggy and everything in the Mini...
Ps: I'm not even gonna get of the mini and we're expecting twins. I can get 3 kids in the car, so why bother
If you need any further help or suggestions, just let me know.
Greetings,
Cathy