The implications of this research are significant for the second-hand car market. One of the primary barriers to the widespread adoption of electric vehicles has been "range anxiety" and concerns over the long-term health of the vehicle. Prospective buyers of used cars often fear that an older electric vehicle will be a liability, particularly once it is out of its manufacturer’s warranty. This data suggests the opposite may be true: for a buyer looking at a vehicle with over 100,000 miles on the clock, an electric car may actually be a safer bet in terms of passing its next roadworthiness test than a traditional petrol vehicle.
Furthermore, the stabilization of the failure rate at 16% for electric vehicles after 60,000 miles suggests a "plateau of reliability" that petrol cars do not share. For petrol and diesel vehicles, the MOT failure rate continues to track upward in a near-linear fashion as the miles pile on, reflecting the gradual degradation of the engine and its ancillary systems. The fact that EVs do not follow this trend could change how fleet managers and long-distance drivers calculate the total cost of ownership, as the later years of a vehicle’s life may not be as plagued by escalating repair costs as previously assumed.
As the UK moves toward its targets for decarbonizing transport, the longevity of the existing and future fleet remains a central concern for policymakers. If electric vehicles prove to be more durable over hundreds of thousands of miles, it could lead to a longer average lifespan for vehicles on the road, potentially reducing the environmental impact associated with manufacturing new cars. The New AutoMotive study provides a data-driven foundation for this optimism, suggesting that the transition to electric power may bring with it a new era of automotive durability.
While the tyre defect statistics remain a point of concern for the industry, the overall picture painted by the analysis of 45 million MOT tests is one of a technology that is proving its worth under real-world, high-stress conditions. As the electric fleet continues to age and more vehicles reach the high-mileage categories, researchers will be able to refine these findings further. For now, however, the data indicates that once an electric car reaches the 120,000-mile mark, it is not reaching the end of its life, but rather demonstrating a level of resilience that its petrol-powered predecessors struggle to match.
