The Maxi-Rider II is the safest convertible car/booster seat on the Australian market as:

1) The seat itself is achored to the car therefore is not relying soley on the adult seat belt to hold it in place in an accident.

2) There is a built in harness, so again, a young child is not relying on the use of an innappropriate adult seat belt.

3) Once the child grows out of the built in harness, they can graduate to the use of an external 'H' harness, which is anchored to the car...so both child and seat are achored securely to the car and are not relying on an adult seat belt.

4) It has the very important 'anti-sub clip' which allows a crotch strap to be attached to the adult lap belt, to eliminate 'submarining ' which is where the child slips down under the lap belt too far. The lap belt then sits over a child's internal organs and can cause serious injury and death in a collision.

Fletch: Perhaps you could show your nephew's parents the info posted in this thread here https://www.bellybelly.com.au/forums...ad.php?t=32748
or visit Isabelle-Paige dot com and watch the you-tube video on why Isabelle lost her little life