I posted this message yesterday but it ended up in 'allergies' somehow, so I'm posting again. We're flying to Australia in FOUR days and need a forward-facing child car seat (9-18kg) with a lap-belt routing for the flight. The Singapore Airlines seats are 17" wide at the base and 7"-8" high from seat base to arm rest. The problem seems to be getting a car seat that's narrow enough to clear the arm rest before its arms splay out beyond 7"-8". We're desperate because our 15-month-old can only fall asleep in a car seat and he's a total wriggler. Any help greatly appreciated.