The Mama's and Papa's brand seems to be called Peg Perego in the States. The Primo Viaggio base and baby seat are indeed a tight fit but it can be done. Below is a link to their new ISOFix / LATCH base (adjustable as well) and baby seat in the MINI.
The seat has to go fairly far forward. More important is the amount of recline of the front seat. You can see that my 5 foot 6 inch tall wife still has a little knee clearance.
Click on the image for more pics:
Jason