DH is keen to buy one of these and so was I and then I started thinking about seats and seatbelts and beds for babies. Now am a bit worried - I know some have seat belts for back seats but these are just lap belts so how do you get car seat in? Also not sure where would put 1 year old to sleep - we have a 4 and a 1 yr old. It is not the classic type sadly a more boggy T25. Anybody got any experience?