What if owning an electric car didn’t mean expensive service visits, proprietary software, or waiting weeks for specialized repairs? A group of Dutch students believes the answer lies in radical simplicity—and they’ve built a car to prove it.
Meet ARIA, a modular electric city car developed by TU/ecomotive, a student team from Eindhoven University of Technology (TU/e), in collaboration with Fontys and Summa. Designed from the ground up with repairability in mind, ARIA challenges the way modern electric vehicles are built, maintained, and ultimately discarded.
Designed to Be Fixed, Not Replaced
Modern EVs are often sealed systems. Batteries are integrated into the chassis, parts are proprietary, and even minor issues can require specialist knowledge and costly tools. ARIA takes the opposite approach.
The car is constructed from clearly separated, standardized components—including the battery system, drivetrain, body panels, and interior electronics. If something breaks, the owner doesn’t replace the entire system—just the faulty part. Exterior panels can be unclipped and swapped in minutes, while also providing instant access to the components underneath.
This modular philosophy extends throughout the vehicle, making maintenance faster, cheaper, and far more accessible.
Your Smartphone as a Diagnostic Tool
One of ARIA’s most innovative features is its diagnostic app. By simply connecting a smartphone to the car via a USB-C cable, owners can instantly read the vehicle’s status. The app identifies faults and uses a 3D model of the car to visually guide users to the exact component that needs attention—along with the tools required to fix it.
Instead of relying on closed manufacturer software, ARIA gives drivers direct insight into their own vehicle, turning diagnosis and repair into a transparent, user-friendly process.
A Battery You Can Remove by Hand
Battery design is where ARIA truly breaks with convention. Rather than a single large, heavy battery pack, the car uses six small, modular battery units, each weighing around 12 kilograms. These modules can be detached by hand—no lift, no special tools, no workshop required.
Together, the batteries provide a total capacity of 12.96 kWh, suitable for urban driving while making replacement and repair dramatically simpler. This approach also extends the vehicle’s lifespan, as individual battery modules can be replaced instead of scrapping the entire pack.
Sustainability Beyond the Powertrain
While electric vehicles are often marketed as sustainable, the students behind ARIA argue that poor repairability undermines that image. As EVs become more complex and harder to fix, many are written off faster than necessary—especially when repair costs exceed resale value.
ARIA addresses this problem directly. By making repairs straightforward and components replaceable, the car is designed to stay on the road longer, reducing waste and maximizing the environmental benefits of electrification.
A Statement to Industry and Policymakers
The project is more than a technical experiment—it’s a message. The team hopes ARIA will inspire automakers to rethink vehicle design and encourage European policymakers to extend Right to Repair legislation to passenger cars.
While recent EU rules strengthen repair rights for consumer electronics and household appliances, electric vehicles are still largely excluded. TU/ecomotive supports the Right to Repair Europe coalition and sees ARIA as proof that repair-friendly EVs are not only possible, but practical.
“If we can design and build this in a year as students,” the team argues, “there’s no reason the automotive industry can’t do the same.”
A Glimpse of a More User-Centered EV Future
ARIA may be a concept car, but its ideas resonate far beyond the university workshop. In an era where technology often locks users out, this student-built EV offers a different vision—one where drivers regain control, sustainability goes beyond zero emissions, and cars are built to last.
[source: TU Eindhoven]
