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• The Mercedes-Benz EQS580 and AMG EQS beat their EPA rankings in our 75-mph vary check, a feat solely 5 different EVs have completed.
• 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 components are at play, however an enormous one is that we suspect Mercedes—like different German manufacturers which have achieved it—is conservative with its EV vary estimates.
Welcome to Automotive and Driver’s Testing Hub, the place we zoom in on the check numbers. We have been pushing autos to their limits since 1956 to offer goal knowledge to bolster our subjective impressions (you may see how we check here).
It is uncommon that an electrical car beats its EPA vary estimate in our 75-mph real-world check. How uncommon? Properly, we have run vary checks on greater than 50 EVs up to now and to this point solely seven—about 13 p.c—went farther than marketed. The most recent to affix this choose firm are the Mercedes-Benz EQS580 and the Mercedes-AMG EQS, which exceeded their mixed EPA figures by 10 and 13 miles, respectively.
Each Mercedes fashions have an electrical motor powering every axle and a 107.8-kWh battery pack. The 516-hp EQS580 is anticipated to journey 340 miles on a full cost, and the 751-hp AMG EQS is anticipated to go 277 miles, in keeping with the EPA. For the failed mathematicians on the market, that is a distinction of 63 miles. And, in our highway-range check, we noticed almost that very same hole, the place the EQS580 coated 350 miles and the AMG EQS traveled 290 miles.
The share of EPA vary achieved by the EQS580 and AMG EQS is 103 and 105 p.c, respectively, however it’s notable as a result of so few EVs have achieved it since we first began testing freeway vary in 2016. The checklist of different overachievers at the moment contains the Audi e-tron Sportback, the Audi e-tron GT (and RS variant), the base-model Porsche Taycan, and the Taycan 4S Cross Turismo. Amongst these, solely the Porsches achieved the next proportion of their EPA ranges than the Benzes—112 p.c for the wagon and a formidable 124 p.c for the sedan.
What’s noteworthy about that group is all of them come from German manufacturers. What’s equally notable is that the Lucid Air and Tesla Mannequin S are lacking, regardless of the Tesla being the first to crack 300 miles of real-world vary after a 320-mile consequence, and the Lucid being the first to break the 400-mile mark after protecting 410 miles at a gentle 75 mph. The reality is, each the 2022 Lucid Air Grand Touring and 2021 Tesla Mannequin S Lengthy Vary Plus we examined fell woefully in need of their EPA vary estimates. The Lucid missed its 516-mile ranking by 106 miles, which is simply 79 p.c of its EPA estimate. The Tesla missed its 412-mile ranking by 92 miles—solely finishing 78 p.c of its EPA vary.
So, what is the distinction between the Germans that outperformed their EPA-rated ranges and the Individuals that did not? Merely put, we suspect the previous group is rather more conservative than the latter in relation to estimating how far their respective EVs will go together with full batteries. Particularly with the EQS duo, their 107.8-kWh web capability is simply 3.9 kWh greater than the Mannequin S Lengthy Vary Plus’s (103.9 kWh) and 4.2 kWh lower than the Air Grand Touring’s (112.0 kWh). Nonetheless, Mercedes’s mixed EPA estimate for the EQS580 is a startling 176 miles decrease (about 34 p.c) than Lucid’s estimate and 72 miles decrease (about 17 p.c) than Tesla’s. The gaps are even wider between the 2 American fashions and the AMG EQS, however you get the image.
After all, different issues performed an element within the Benzes beating their EPA-rated ranges, however it’s tough to quantify every contributing issue. Each fashions are tremendous slippery due to their aerodynamic-focused, cab-forward design that helps ship extremely low drag coefficients of 0.20 for the EQS580 and 0.23 for the AMG EQS.
Tires even have a big effect on vary. Whereas our AMG model wore Michelin Pilot Sport EV rubber that is designed for sporty dealing with and low rolling resistance, our EQS580 wore surprisingly aggressive Goodyear Eagle F1 Uneven 5 summer season tires and nonetheless beat its EPA ranking. Maybe there is a approach to squeeze much more vary out of Mercedes’ electrical luxurious barge? Both approach, for now, the Benzes are a part of an unique membership of vary beaters.
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