I had the maxi cosi when she was small but it was tight when it was in reverse facing. I currently have pro sport as we as a pro ride. The non rear facing one fits better in the e90. Agree with others, you will have multiple seats and in our case multiple strollers.
Recaro has discontinued those seats and replaced them with the new versions, cheapest place I have found is amazon.
If you have not got the compact stroller yet, I would suggest this one we just got this year. We already had the bugaboo bee and bob jogging stroller. This is our third and she is not even two yet.