The end of the petrol car's resale dominance is here, with data showing NEVs now holding value just as well as their internal combustion rivals.
Forty-six point zero-seven percent. That is the current three-year retention rate for petrol vehicles in China, a figure that signals a quiet but profound shift in the global automotive hierarchy. For decades, the internal combustion engine was the anchor of used car value, a reliable metric that buyers and dealers relied upon to predict a vehicle's worth. That assumption is now crumbling, and the data suggests the era of the petrol car as the default safe bet for resale is effectively over.
The numbers from the China Automobile Dealers Association and Jingzhengu make the change undeniable. In the first half of 2026, the average retention for fuel-powered cars sat at just under half of their original price, a sharp drop from the 62 percent average seen in 2023. Meanwhile, new energy vehicles have closed the gap to a mere 44.8 percent. This is not a marginal difference, it is a reversal of the traditional market dynamic that has defined car ownership for generations.
The Reversal of a Two-Decade Rule
To understand the scale of this change, look at the trajectory over the last three years. In 2023, petrol vehicles commanded a 20 percentage point advantage over their electric counterparts in residual value. It was a predictable market where a Toyota or a Volkswagen would almost always hold its value better than a battery-electric rival, simply because the powertrain was proven and the service networks were established. That premium has evaporated in a matter of a few model cycles.
The data from used-car platform Guazi reinforces this trend with monthly granularity. In September, the three-year retention rate for fuel-powered vehicles was 51.1 percent, a slight dip from the previous month. In the same period, NEVs rose to 48 percent. The gap has narrowed to a single digit, and in some specific age brackets, the tables have turned completely. This is not just about the cars getting cheaper to buy, it is about the underlying perception of long-term worth shifting towards the new technology.

The Price War Is Eating Resale Value
The primary driver of this shift is the relentless price competition in the new car market. Automakers are cutting new car prices aggressively to defend their sales volumes against domestic rivals and new entrants. When a new car is discounted heavily, the value of the comparable used vehicle is forced down to match it. Buyers are no longer looking at the used car in isolation, they are comparing it directly against the discounted new model on the forecourt.
This pressure hits volume brands like Toyota and Volkswagen particularly hard. These manufacturers have traditionally enjoyed strong resale premiums, but that advantage is eroding as their new car prices fall and their product competitiveness is questioned by domestic brands. The reports indicate that even vehicles that once held their value exceptionally well are now losing ground when new car discounts widen. The market is no longer generous to the status quo, it is punishing any car that cannot justify its price against the latest technology.

Battery Health Is the New Mileage
For the buyer in Europe and Ireland, the implications are significant. The traditional rule of thumb, that a petrol car is a safer financial bet, is no longer valid. When you are looking at a used electric car, the battery health check has become the single most important factor. This is not a minor detail, it is the core of the vehicle's value. A battery that has degraded significantly will not only reduce the car's range, it will also crush its resale value, mirroring the pressure on petrol cars from the new car market.
Recent data from AA Cars shows that views of EV listings are up by nearly 50 percent year-on-year, driven by rising fuel prices. This surge in interest means that the used EV market is becoming more sophisticated. Buyers are no longer just looking for a cheap car to drive, they are looking for a car that will hold its value. The battery health check is the new mileage figure, a concrete metric that determines whether the car is a bargain or a trap.

What to Check Before You Buy
Practical advice for the used EV buyer is straightforward but essential. First, insist on a battery health check. This will show you the current capacity of the battery compared to its original state. Second, check the range. Ask the seller to charge the car to 80 percent, then compare the displayed range to the official manufacturer's figure. This gives you a real-world baseline for what to expect in your daily driving, and it helps you spot any hidden degradation that the seller might not be aware of.
Finally, check the warranty. Most electric vehicles come with an eight-year battery warranty, but the terms vary. Some older models had a separate lease on the battery, which can be a costly trap for the next owner. Read the documentation carefully, and ask the seller about any remaining protections. In a market where the value of both petrol and electric cars is under pressure, the one who knows the most about the specific car's condition has the upper hand in the negotiation.
The New Normal for Car Ownership
The data from China is a leading indicator for the global market. The days of the petrol car being the default choice for resale value are over. The new normal is a market where the technology, the price, and the specific condition of the car all matter as much as the badge on the bonnet. For the buyer, this is a good thing. It means that the used car market is becoming more transparent, more data-driven, and more responsive to the actual value of the vehicle, rather than just its history.
The 2026 auto sales trends show a market in flux, with new models from Leapmotor, Peugeot, and others entering the fray and adding to the pressure on established brands. The consumer is winning in this environment. With more choice, more data, and a more competitive market, the power has shifted from the dealer to the buyer. The petrol car is not dead, but its reign as the king of resale value has ended, and the EV is now a legitimate, value-competitive alternative in the used car market.
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