Citroen C5 BJ 2012 Limousine – stroller suitable?

Good day I’m new here in the forum and have some questions directly. I would like to buy a Citroen C5 Diesel Limousine in the near future. This is BJ 2012 and has just run its 50k. The exact model is called “Citroen C5 2.0 HDi 165 FAP Exclusive”. As we expect offspring, but I don’t have a pram at home so far, I wanted to know if any of you can tell me which trunk dimensions the C5 Limousine has. Fits there a commercial pram there in? Second question: The model I have in mind is equipped with 6 gears automatic transmission. The engine delivers 120 kW. Does this speed up enough? Or are there better alternatives? I often drive the highway, so far with a Toyota Corolla with 85 hp, which is quite a disaster from time to time. Thank you very much, Fo0