Can anyone help - we are expecting dc3 and need a new car that will fit 3 big car seats across the back. We will have dc1 in a Britax high back booster (age 4), dc2 in a Britax dualfix that swivels round (massive) (age 2) and dc3 in a maxi cosy. In either the Picasso or s max can I fit these three seats across the middle row? Or do you need one on the back row? And is one car more spacious than the other? I can't find a stat anywhere that says how big the actual seats are in both cars. Thank you