best car seat for 6 year old

For most six-year-olds in Australia, a high-back booster that positions the adult seatbelt correctly is the sweet spot, unless they still fit the shoulder-height markers for a harnessed Type G seat.

Look for models certified to AS/NZS 1754, with solid side-impact protection, good belt guides, and a top tether where applicable.

Popular, well-regarded picks include Britax Maxi Guard Pro (harnessed to approx. 8 years), Britax Hi-Liner, InfaSecure Aspire or Acclaim range, and Safe-n-Sound Kid Guard — choose the one that fits your child and your car best.

Avoid second-hand seats with unknown history, install it properly (no wobble, no twisted belts), and if in doubt get a fitting checked by an accredited restraint installer.

Because their superpower is growing overnight and hiding sultanas in the crevices, recheck the fit every few months.