Mercedes-Benz's 2027 EQS 450+ ran 867 km (539 miles) on a single charge to set a record for the longest range among electric sedans, EV outlet Electrek reported on Nov. 9.

The result came from an 'EV Range Test' conducted by automotive outlet Edmunds. The car's U.S. Environmental Protection Agency (EPA) certified range is 752 km, and the real-world result was 116 km longer. It was the longest among the electric sedans Edmunds has tested. It surpassed the Lucid Air, which had held the top spot. Among EVs overall, it ranked second behind the Cadillac Escalade IQ at 898 km. The Escalade IQ has a 205 kWh battery.

The new EQS 450+ has a 122 kWh battery and an 800-volt electrical architecture. Efficiency also improved. During the test, power consumption was 18.4 kWh per 100 km, similar to the EPA estimate of 17.4 kWh. The 2025 EQS 450+ ran 747 km in the same test and used 21.1 kWh per 100 km.

Charging performance also improved significantly. Peak charging speed was 350 kW and the average was 222 kW. The older EQS had a peak of 208 kW and an average of 175 kW. The new model can add 1,328 km of charge in 1 hour, and 161 km in just over 7 minutes. That is about twice as fast as the 2025 model.

The Edmunds test uses a route that is 60 percent city driving and 40 percent highway driving, at an average speed of 64 km per hour. It maintains within plus or minus 8 km per hour of the speed limit, and sets climate control to automatic mode at 22 degrees Celsius.

In the same test, the 2027 BMW iX3 50 xDrive ran 702 km, exceeding the EPA estimate of 631 km by 71 km. The 2027 Volvo EX60 recorded 566 km, and the 2027 Mercedes-Benz GLC Electric recorded 631 km.

Electrek introduced a survey conducted by BMW. Some 73 percent of Americans said 40 to 120 km of daily driving range is sufficient. But 42 percent cited at least 483 km as a condition for buying an EV. Some 53 percent said they would be more likely to buy if they could charge about 241 km in under 10 minutes.