Well, I've gone from a GTV to a Brera so it certainly feels practical! I was looking at either a Brera or 159, but preferred the coupe. I turned up at a dealer for a test drive...and started with wheeling a car seat with buggy chassis out the family Focus to see it fitted! I think I was the first they had seen to do that ;-)
It fitted by about half an inch, but that's enough! Actually, the car seat is a tight fit but only for occasional use. The issue now is it needs replacing for a front facing, which should actually be easier. However, the chassis now has a separate seat so that no longer fits....but the Brera is staying for a bit!
Genuinely, I have had 4 adults for short periods and despite moaning, it's ok. If it is for the odd use, either with kids or 4 adults, then go for it.
I just need to get that 44mpg, a long way off that at the moment :-(