If you've started searching for Britax car seats, you're in good company. Britax is one of the most recognised names in child car safety, and for good reason — they've been making seats in the UK for decades and have a reputation built on genuine engineering investment. But if you've landed here, there's a chance you haven't yet discovered the part of the Britax range we find most interesting: their extended rear-facing seats.
Most parents searching for Britax are thinking about safety. That instinct is exactly right. And once you understand why rear-facing is the safest way for young children to travel, Britax's rear-facing options start to look very compelling indeed.
This guide walks you through what to know about Britax from a rear-facing perspective — including a closer look at the Britax Safeway M 2 — and helps you work out whether it might be the right fit for your family.
Why Rear-Facing Matters (and Why Britax Takes It Seriously)
Before we get into specific Britax car seats, it's worth a quick word on why rear-facing is so important.
When a child travels rear-facing, the force of a collision is spread across the back, neck, and shoulders rather than being absorbed by the harness straps alone. For young children whose spines and neck muscles are still developing, this makes an enormous difference.
Safety note: Rear-facing car seats are widely considered the safest option for young children. We'd recommend checking with an authoritative source such as GOV.UK or Which? for the most current research and guidance on rear-facing versus forward-facing travel.
In the UK, car seat regulations have evolved over time — we'd recommend checking GOV.UK or an authoritative source such as Which? for the most current legal requirements, as standards and their implementation details can change. What we can say is that many modern rear-facing seats are designed to keep children rear-facing well beyond the infant carrier stage — well into toddler and even pre-school years. Britax designs their rear-facing seats to current standards.
There's also the Swedish Plus Test, an additional voluntary crash test used by some manufacturers. We'd encourage you to verify the specifics of what it covers and how it compares to other testing standards with an authoritative source such as Which? or ADAC. Not all seats hold this certification, but it's worth looking for if you want an extra layer of assurance. We'll note where relevant whether a seat holds this certification.
Britax's Rear-Facing Range: What's Available
Britax offers several seats with rear-facing capability across different age groups. Here's a broad overview to help you navigate:
Infant Carriers (birth to approx. 12–15 months)
Britax makes a solid range of infant carriers, including the Baby-Safe range, designed for newborns and young babies. Infant carriers are typically rear-facing, and are compatible with a number of base systems for easier installation. For confirmation of the design and configuration of any specific Britax infant carrier model, we'd recommend checking directly with Britax.
Extended Rear-Facing Seats (the bit we really care about)
This is where things get more interesting. Extended rear-facing (ERF) seats are designed to keep older toddlers and children rear-facing well beyond the infant carrier stage — often until age four, five, or beyond depending on the seat and the child's size.
Britax's standout ERF option for UK families is the Britax Safeway M 2, and it's the seat we're most asked about from parents who come to us having already looked at the Britax range.
The Britax Safeway M 2: What You Need to Know
We've written a full review of the Britax Safeway M 2 on the blog, but here's a summary of what makes it worth your attention.
The Safeway M 2 is designed to keep toddlers and older children rear-facing for longer than many parents realise is possible. For confirmation of its classification, approval status, and full specification, we'd recommend checking directly with Britax, as details can vary by market and production run.
For specific details on the Safeway M 2 — including approval status, installation method, fitting features, and recline options — we'd recommend checking the current specifications directly with Britax, as specs can vary by market and production run. What we can tell you is that it's designed to carry children rear-facing for a meaningful extended period beyond the infant carrier stage.
Tip: Always check that your specific car is compatible with any seat before purchasing. ISOFIX points and top tether anchor points vary between vehicles — if you're unsure, we can help you check. It's also worth reading our guide on where to place a rear-facing car seat in your car to make sure you're set up safely from the start.
For exact weight and height limits on the Safeway M 2, we'd always recommend checking the current specifications directly with Britax, as these can be updated.
How Does the Britax Safeway M 2 Compare?
Parents often ask us how Britax rear-facing seats compare with other brands we stock — like Axkid, BeSafe, and Avionaut. It's a fair question, and one without a single right answer.
Here's an honest take:
- Britax brings strong brand recognition, robust build quality, and good availability. If you're already familiar with the brand and want to stay within it, the Safeway M 2 is a credible choice.
- Axkid seats like the Axkid Minikid Core are Swedish Plus Test approved and sit at the premium end of the ERF market — for details on available installation options, we'd recommend checking directly with Axkid or confirming with us before purchasing.
- BeSafe offers a range of rear-facing seats with strong safety credentials and broad vehicle compatibility — worth exploring if you're looking for flexibility.
- Avionaut has a reputation among ERF parents worth exploring — we'd suggest checking with us or the brand directly to understand how their seats compare in terms of size and weight for your specific situation.
No single seat is right for every family and every car. That's why we think it's so important to talk through your specific situation rather than just buying based on a brand name alone.
Getting the Right Fit: Why Installation Matters as Much as the Seat Itself
Even the best Britax car seat won't perform as designed if it's not installed correctly. This is something we feel strongly about at Saunders & Smalls.
Incorrect installation is a well-documented concern across the car seat industry — common issues we see in practice include:
- ISOFIX connectors not fully engaged
- Top tether straps not attached or routed incorrectly
- Incorrect recline angle for the child's age
- Harness straps routed through the wrong slots
If you're in Somerset and want to make sure your seat is installed properly, we offer a professional fitting service called Smalls Install Plus — book an appointment and we'll check everything is set up correctly and that you feel confident using it day-to-day.
If you're outside Somerset, please get in touch and we'll do our best to point you in the right direction.
So, Is a Britax Rear-Facing Seat Right for Your Family?
Britax car seats offer a reliable, well-engineered choice for UK parents, and the Safeway M 2 in particular is a seat we're happy to recommend for families who want extended rear-facing with the reassurance of a familiar, trusted brand.
That said, we'd always encourage you to think beyond brand recognition when making this decision. The right seat is the one that:
- Fits your child's current size (and has room to grow)
- Fits your car correctly — including ISOFIX points and tether anchors
- You can install and use confidently every single journey
If you're comparing your options across brands, our BeSafe Beyond review is a useful read for understanding what a premium ERF seat looks like at the top of the market. And if you'd like a recommendation tailored to your car and your child, we're always happy to help — just drop us a message.
We're here to help you make the safest choice, not just the most convenient one.


