📏 0-8 Year Car Seats
Reviewed by the BabyCosts editorial team
| Feature | Maxi-Cosi Pria LX | Britax B-Grow ClickTight |
|---|---|---|
| Best Price | $699.00 View full comparison → | $579.00 View full comparison → |
| Price (AUD) | $699 – $849 | $579 – $699 |
| Age Range | Birth to ~8 years (0-8 age range) | 6 months to ~8 years (forward-facing harness + booster) |
| Rear-Facing Limit | Birth to 30 months (12 kg) | N/A, forward-facing only |
| Forward-Facing Limit | 12 months to 8 years (26 kg as booster) | 6 months to 8 years (26 kg as booster) |
| Installation Method | ISOFIX + top tether OR seatbelt + top tether | ClickTight (seatbelt) OR ISOFIX + top tether |
| Warranty | 10 years (shell) / 2 years (covers) | 10 years (shell) / 2 years (covers) |
| Weight | 10.5 kg | 9.7 kg |
| Safety Standard | AS/NZS 1754:2024 | AS/NZS 1754:2024 |
| Vehicle Fit | ISOFIX + top tether; fits most Australian vehicles | ClickTight (seatbelt) + ISOFIX; fits most Australian vehicles |
Australian parents typically follow a 3-seat journey: infant capsule (birth–12 months, ~$400–$600), convertible car seat (0–4 years or 6 months–4 years, ~$469–$649), and booster seat (4–8 years, ~$150–$300). Total: ~$1,019–$1,549. A single Pria LX at $699+ covers all three stages — birth to 8 years in one seat — saving $300–$800. The B-Grow at $579+ covers two of the three (convertible + booster), still saving $100–$400 over separate purchases even after adding an infant capsule (~$400+). The tradeoff: 0-8 seats are heavier (10.5 kg Pria LX, 9.7 kg B-Grow) than 0-4 seats (8.9 kg Graphene) and bulkier in rear-facing mode. If you never need to move the seat between vehicles, the weight is a one-time inconvenience. If you swap cars weekly, a lighter 0-4 seat may be worth the future booster purchase.
This is the key difference. The Pria LX rear-faces from birth — take your newborn home from the hospital in it and use the same seat until they’re 8. The B-Grow is forward-facing only from 6 months — you cannot use it for a newborn. If you’re buying before your baby is born, the Pria LX is the only option. If your baby is already 6+ months and you’ve been using an infant capsule, the B-Grow picks up where the capsule leaves off. The B-Grow + a Britax Unity capsule ($499) totals ~$1,078 — still ~$200–$470 cheaper than the full 3-seat journey, and you get the ClickTight installation and the convenience of a removable capsule for the first 6 months.
Maxi-Cosi (Dorel Juvenile)
The premium 0-8 car seat with GCELL side-impact technology and 5-step vehicle-specific installation guide.
From $699.00
View details & buy →
Britax Childcare
The Australian forward-facing 6mo-8yr seat with ClickTight installation.
From $579.00
View details & buy →
The Maxi-Cosi Pria LX ($699–$849 AUD) is the only premium car seat in Australia that spans birth to 8 years in a single seat — rear-facing from birth, forward-facing with harness, then booster mode. The Britax B-Grow ClickTight ($579–$699 AUD) covers 6 months to 8 years and requires a separate infant capsule or bassinet for the first 6 months. Both eliminate the need for a separate booster seat later.
Yes. A single Pria LX ($699+) replaces: capsule (~$400–$600) + 0-4 convertible (~$469–$649) + booster (~$150–$300) = ~$1,019–$1,549 total. The B-Grow ($579+) replaces two of those three (convertible + booster) for a total of ~$979–$1,199 with an infant capsule. Both 0-8 seats save $300–$800 over the separate-product approach over 8 years.
No. The Britax B-Grow ClickTight is forward-facing only and rated from 6 months. For newborn use, you must purchase a separate infant capsule (e.g., Britax Unity capsule ~$499+) or use a 0-4 convertible seat for the first 6 months. The Maxi-Cosi Pria LX is the only 0-8 seat in our comparison that works from birth — it rear-faces from birth to 30 months before switching to forward-facing.
Both pass the same AS/NZS 1754:2024 crash test and are equally safe when correctly installed. The Pria LX has the edge in side-impact protection with GCELL honeycomb technology (adapted from motorsport helmets), and its rear-facing capability from birth provides the biomechanical safety benefit of rear-facing for infants. The B-Grow's ClickTight installation reduces the risk of installation errors — the #1 cause of car seat failure in real-world crashes. The safest seat is the one installed correctly: professional fitting at Baby Bunting (~$45 AUD) is recommended for both.
How we compare 0-8 seats