Are cars on Australian Roads getting older?

The Average Car on Australian Roads Is Now 11 Years Old. That Changes Everything About How You Should Service It.
Somewhere in your street, right now, there is a European car that has been doing the same school run, the same supermarket trip, the same weekend dash up the freeway for longer than some of the kids in the back seat can remember. It has probably had its brake pads done twice, its tyres swapped out three or four times, and at least one argument between its owners about whether that noise from the suspension is "normal."

That car is not unusual. It is the Australian average.
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The numbers behind the gut feeling

According to the Bureau of Infrastructure and Transport Research Economics (BITRE), the average age of a registered passenger vehicle in Australia hit 11.3 years in 2025, up from 11.2 the year before and continuing a steady climb that has been underway for most of the decade. Industry analysis from IBISWorld and Frost & Sullivan puts it in starker terms: roughly 75 per cent of vehicles on Australian roads are now more than six years old.

That is not a blip. It is a structural shift in how Australians own and use their cars, driven by the combined pressure of rising living costs, eye-watering new car prices, and a post-pandemic supply squeeze that made trading up harder and holding on easier.

The practical result is a national fleet where millions of vehicles have already sailed past their factory warranty, past their capped-price servicing window, and into the phase of ownership where the manufacturer's involvement effectively ends. But the car's need for attentive maintenance is only increasing.

What actually happens to a European car after a decade?

A ten-year-old European car with reasonable kilometres on it is not falling apart. Modern engineering has seen to that. But it is ageing in ways that do not show up on a standard service checklist, and that gap between what gets checked and what needs checking is where expensive surprises come from.

The issue is material degradation. Rubber and plastic components do not care how far the car has travelled. They care how long they have been alive.

Component

What happens with age

Why a standard service can miss it

Valve cover gaskets

Rubber hardens and shrinks, creating oil seeps that worsen over months

Often only visible from underneath or with covers removed — not part of a routine inspection

Suspension bushings

Rubber cracks and loses elasticity, affecting handling and tyre wear

Deterioration is gradual; the car still "drives fine" until it suddenly does not

Plastic cooling pipes

Become brittle with heat cycling over years, prone to cracking without warning

Visually intact until failure; rarely pressure-tested during a logbook service

Intake and vacuum hoses

Rubber perishes internally, causing air leaks that trigger fault codes

Faults can appear intermittent, leading to repeated diagnostic charges

A technician who sees dozens of the same model every month knows where these failures develop. A service template does not.

Logbook servicing still matters but it is not the whole story

There is a persistent misunderstanding that logbook servicing becomes irrelevant once the warranty expires. It does not. The manufacturer's service schedule exists because certain systems like brakes, fluids, filters, and ignition components need attention at regular intervals regardless of age or warranty status. Sticking to that schedule keeps a documented history intact and ensures nothing fundamental gets overlooked.

Where logbook servicing falls short on an older car is in scope. The schedule was written for a vehicle in its early years. It assumes components are relatively new. It does not account for a cooling system where every plastic connector is a decade old, or suspension rubber that has endured ten Melbourne winters and ten Melbourne summers, which is essentially twenty different climates.

For owners of ageing European cars, the most effective approach combines both:
Logbook servicing to the manufacturer's specification, maintaining a clear, consistent record that any future buyer or insurer can follow.
Condition-based inspection on top of the logbook, specifically targeting age-sensitive materials and known failure points for that model and generation.

Planned replacement of wear items before they fail, because a cracked cooling pipe at 60 km/h on the Monash is a tow truck and an engine-damage risk, while the same pipe replaced during a service is a line item on an invoice.

Detailed records of what was found, what was done, and what is being monitored, so every service builds on the last one rather than starting from scratch.

Why this matters more   than it used to

A decade ago, the average car on Australian roads was younger, and the assumption baked into the servicing industry was that most vehicles would cycle through dealer networks, trade-in lots and second owners within seven or eight years. The infrastructure of dealer service departments, capped-price programs, and templated maintenance schedules was built around that cycle.

The cycle has stretched. The cars have stayed. And the servicing model has not entirely caught up.

For owners of European vehicles that are now deep into their second decade of life, the difference between a workshop that follows a checklist and a workshop that understands the car sitting on the hoist is not academic. It is the difference between replacing a brittle coolant pipe for a few hundred dollars during a routine service and standing on the hard shoulder of the Eastern Freeway with steam pouring from under the bonnet and a repair bill that starts with a comma.

The ownership mindset that keeps older cars reliable

Australians who have an ownership mindset keep their cars running better and longer than those who don’t. They are treating their older vehicle the way you would treat a well-built house: with regular maintenance at a mechanic who respects both the schedule and the reality of what time does to materials.

That means finding a workshop where the technicians know the car, know its history, and know the difference between a service item that is due and a component that is about to let go. It means treating servicing as an ongoing conversation about the car's condition rather than a twice-yearly transaction.

With three-quarters of the national fleet now past the six-year mark, that approach is no longer niche. It is how most car ownership in Australia works. The only question is whether the servicing keeps pace with the car.

Sources: Bureau of Infrastructure and Transport Research Economics (BITRE), Road Vehicles Australia (2024 & 2025); IBISWorld, Motor Vehicle Maintenance and Repair in Australia (2024–25); Frost & Sullivan, Automotive Aftermarket Analysis.

About the publisher: Karl Knudsen is a respected and certified mechanical workshop in Chatswood, Sydney, with over 20 years of experience in servicing vehicles. They specialise all makes and models of European vehicles.
@ 2026 Karl Knudsen. All Rights Reserved.