Mercedes-Benz EQS580 and AMG EQS Beat EPA Ratings in Our 75-MPH Range Test

• The Mercedes-Benz EQS580 and AMG EQS beat their EPA ratings in our 75-mph range test, a feat only five other EVs have accomplished.

• The 516-hp EQS580 went 10 miles farther than its 340-mile estimate, and the 751-hp AMG EQS went 13 miles farther than its 277-mile estimate.

• Many factors are at play, but a big one is that we suspect Mercedes—like other German brands that have done it—is conservative with its EV range estimates.

Welcome to Car and Driver's Testing Hub, where we zoom in on the test numbers. We've been pushing vehicles to their limits since 1956 to provide objective data to bolster our subjective impressions (you can see how we test here).

It's rare that an electric vehicle beats its EPA range estimate in our 75-mph real-world test. How rare? Well, we've run range tests on more than 50 EVs to date and so far only seven—about 13 percent—went farther than advertised. The latest to join this select company are the Mercedes-Benz EQS580 and the Mercedes-AMG EQS, which exceeded their combined EPA figures by 10 and 13 miles, respectively.