Hi.
My baby is now 10months old.
We have THREE prams
Quinny Zapp used with the maxicosi car seat.
grea for the shor trips. Indespensable during the first few months but baby can only stay 2hrs.
So we bought a Maclaren stroller for her to lie flat. Was a bigger one (techno xlr). Used alot coz it's real comfy and lies flat for her to sleep in. Sturdy for holiays abroad and long walks. We lie one of the split rear seats back to fit it in but still have at least 1/2 a boot for small shopping.
Wife found the Maclaren a bit heavy tolug in and out coz she's only petite

so we bought a Hauk that lies flat. It's one of the early ones and fits in boot no probs. Check the measurements coz newer models are a bit bigger. Very light and open and close with one hand.
Hope this helps a bit