The WLTP test is “better than the old NEDC, but still not entirely realistic,” he said. The test itself lasted only 30 minutes, the average speed reached was only 46.9 km/h.
This is broken down into low, medium, high and extra-high speed tests, with average speeds of 18.7 km/h, 24.5 km/h, 35.2 km/h and 57.2 km/h respectively, and because of the Test designed to simulate real-world driving with many forces, such as acceleration and deceleration, will benefit EVs, which can charge their batteries through regenerative braking in such conditions.
As a side note, he mentioned that the real-world range he achieves with his electric company car is regularly around 78 percent of the WLTP range – which fortunately largely agrees with our findings based on our road tests mentioned above.
How do I know the full range of an electric vehicle before I buy it?
Don’t forget to take a closer look at the manufacturer’s range specifications. The main range number you’ll see most of the time is the WLTP Combined number – that is, an average based on the entire test.
However, range figures based on the various components of the test are also available to manufacturers (but are not always published). For example, EVs also have a low speed WLTP range value, which gives an estimate of range based on low speed use, and an extra long range WLTP value, which does the same for high speed use.
With this in mind, our expert suggests that if you intend to use your EV regularly on a motorway, you can try to find out its range using the extra high speed section of the test. If you drive mostly in urban areas, you can use the low or medium range values to get a better idea of what the range will be for your specific use.
If manufacturers don’t publish these figures, ask the seller. The more people inquire, the more likely it is that these figures will be released and thus get into the mainstream, making it easier for future shoppers to determine their real assortment.
Our expert also recommends looking up facts and figures on the independent website EV Database. “I suspect they get their data from one of the sites that have the EU whole vehicle type-approval data, which has the emissions data for all new vehicles,” he said.
“They caused some problems early on for some manufacturers when people looked at their dataset and questioned the official numbers they are (legally) required to report. In reality, however, the figures given by EV Database seem to be quite realistic.”
The truth about electric cars
First, it’s important to remember that manufacturers’ statutory range claims are not necessarily indicative of real-world range, as the official tests used tend to flatter electric cars (although these numbers are still useful for comparison purposes). ).
It’s also worth remembering that with heavy use, uphill and downhill, in cold weather and without preconditioning, an EV’s range can drop by as much as half, although this is probably a worst-case scenario.
Based on our experience and road testing, a good rule of thumb is that in the real world you can expect between 75 and 80 percent of a car’s combined WLTP range – although this is by no means guaranteed and can vary depending on a number of factors including ambient temperature , speed, terrain and the number of people on board.
However, before you buy, ask your dealer not only to tell you the combination range, but also the low and extra high values so that you can better estimate how far the car can travel on long journeys or in the city, depending on the location think you will use it the most.
This article will be updated with the latest advice.
For new and used buying guides, tips and expert advice visit our guides section or sign up for our newsletter here
To chat with the Telegraph Cars team about all things motoring, join the Telegraph Motoring Club Facebook group here
AZ car finder
https://www.telegraph.co.uk/cars/advice/how-far-electric-car-range-ev-full-charge-batteries-2022/ how far an EV will really go on a full charge