How far an electric vehicle goes on a single charge depends on a lot of factors, including speed, temperature, topography, and other traffic conditions. This is why government-backed range ratings like the EPA and WLTP use are really just an estimate of what an EV owner can expect in a combination of city and highway driving in mostly favorable, albeit not ideal, ambient temperatures. The real world is entirely different, though, which is why InsideEVs conducts its own EV range tests at a constant speed of 70 miles per hour.
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Range King: 2022 Lucid Air Dream Edition
- Real-world Highway Range: 500 miles
- EPA-estimated Range: 520 miles
- Difference: -4.0%
About EV Range Tests Conducted By InsideEVs - We want to make it clear our range tests aren't perfect. There are variables simply out of our control like wind, traffic, and weather. However, we do our best to control what we can. We always set the tires to the manufacturer's recommended pressure, we crosscheck the speedometer with a GPS for accuracy, we charge up to 100 percent and enter the highway either immediately or within a couple of miles. Then we drive at a constant 70 mph and in long loops so we end up basically where we started.
Whenever possible, we repeat the test with a second member of the team on a different course. When we do that, we average the results of the two tests. We also report the temperature and whether we used the heating or cooling during the test, and offer our opinions on how using the climate control system use may have impacted the results. We realize that a change in temperature as little as 10° F (5.5° C) can have a meaningful effect on an electric car's range. However, these 70-mph range tests are useful because they provide another data point for potential customers who are looking for as much information on driving range as they can get.
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What's The Real World Highway Range Of Today's Electric Cars? We Test To Find Out (insideevs.com)