Autocar India
5w

How is the WLTP range figure calculated and claimed by car manufacturers? In real-world driving, these figures are almost never achieved. For example, my Citroën eC3 has a claimed WLTP range of 320 km, but even at 100% charge, the car usually shows only around 230 km of range. Why is there such a large difference between the claimed range and the actual real-world range in EVs?

Verified
5w

That headline range comes from a fixed lab test. In Europe, it is WLTP. In India, most brands quote the ARAI/MIDC result. 

For the Citroen eC3, the 320 km figure is from the Indian ARAI test. This is derived from running the car in a controlled environment - on a rolling road in a lab, at set gentle speeds, with no AC, light load and its battery temperature too is maintained at optimum levels. In the real world, however, different driving styles, ambient temperatures, air-con use, and gradient changes are likely to hamper efficiency. So the real-world figure is usually much lower than the manufacturer's claimed numbers.

In our real-world tests, the eC3 delivered 228km, which is largely in line with the 230 km predicted range that's displayed when your car's battery is fully charged. The vehicle's on-board computer studies your previous driving style, based on which it displays a predicted range number.

To check your real range, charge to 100%, reset the trip, drive to about 10-15% SoC and see the kilometres covered. If it is far lower than expected, even with calm driving, check tyre pressures and ask the dealer to scan for software updates or battery health.

Citroen eC3

Citroen eC3

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I own a BS4 Ford Endeavour Diesel, registered in Gurgaon in 2017. I recently came across the supreme court's revised ruling regarding the end-of-life policy for BS4 diesel vehicles. As I understand it, BS4 diesel vehicles in the NCR can continue to be used beyond 10 years, subject to passing the required fitness tests. However, my understanding is that during GRAP Stage 4 restrictions, such vehicles would not be allowed to operate. In short, am I correct in understanding that I can continue using my vehicle beyond 10 years, provided it has a valid fitness certificate and no restrictions such as GRAP Stage 4 are in force?

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Posted on: 15 May 2026