A friend is selling their six-berth motorhome and we were very keen on it, but it only has 4 seatbelts (we are a family of 5). I have looked on the internet and although it does say that it is possible to add seatbelts, that it is not always advisable for safety/insurance reasons. It's a 2005 Fiat Carioca. Has anyone had this done? Any advice? Thanks.