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Mercedes-Benz EQS 450+ Is the Longest-Range Electric SUV We've Ever Tested

The EQS beat its EPA-estimated range by 68 miles

2024 Mercedes-Benz EQS SUV front 3/4
  • We ran a 2024 Mercedes-Benz EQS 450+ SUV through the Edmunds EV Range Test.
  • We observed 407 miles of real-world driving range.
  • The EQS is the longest-range electric SUV we've tested to date.

The 2024 Mercedes-Benz EQS 450+ SUV has more electric driving range than any other new SUV we've tested. On the Edmunds EV Range Test, we saw 407 miles in the EQS 450+, which is a 20.1% improvement over its 339-mile EPA range estimate.

This now puts the EQS 450+ SUV in fourth place on our EV Range Test leaderboard, right behind its sedan counterpart. The next-longest-range SUV we've tested is the BMW iX xDrive50 (377 miles).

Even better: Our overall efficiency beat the EPA's numbers, too. The EQS 450+ is expected to use 39 kWh per 100 miles, but we saw 32.7 kWh per 100 miles in our testing.

A bigger battery for 2024

The EQS SUV got a slightly larger battery this year, with a maximum capacity of 118 kWh, compared to a 2023 model's 108.4-kWh pack. When we put a 2023 EQS 450+ SUV through the Edmunds EV Range Test previously, it traveled 360 miles — an 18.1% improvement over the EPA's 305-mile estimate.

Given the 2023 EQS SUV's excellent performance, the impressive 2024 model-year numbers aren't exactly a surprise.

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Am I Ready for an EV?

  • EV ownership works best if you can charge (240V) at home or at work This typically means a 240V home installation, but you could also have a similar setup at your office or other places your car is already parked for several hours each day. Don't expect a regular household outlet (120V) to suffice unless you've got a plug-in hybrid, in which case overnight charging at home is feasible.
  • If you can’t charge at home, charging at a charging station could take at least 10x longer than at a gas station With public charging infrastructure still in its infancy, the user experience can be maddeningly inconsistent. Tesla owners tend to rave about the reliability and speed of the company's proprietary Supercharger stations, but rival DC fast options have thus far been plagued by technical issues and overcrowding. It's an evolving landscape and our best advice is to do your research on the available options for the EV you want to buy.
  • Adding a 240V home charging system could cost up to $1,600 or more If your existing electrical service can handle the additional demands of EV charging, you may be able to add Level 2 charging at home for less than a grand, including installation. But your costs will multiply if you need to upgrade your electrical panel or add a dedicated circuit.
2024 Mercedes-Benz EQS SUV rear 3/4

How we range test

Edmunds uses specific road routes around the greater Los Angeles area that aim for a mix of 60% city and 40% highway driving. (We assume most EV owners will spend more time in stop-and-go traffic than they will on the open highway.) We run each vehicle in its most efficient drive mode as long as it doesn't compromise safety or comfort; some systems deactivate the climate control, and we won't do this. We also test with the vehicle's windows up, with the climate control set to auto at 72 degrees. We maximize regenerative braking during stops and follow the posted speed limits, keeping within 5 mph when possible.

Edmunds says

More range is always a good thing. It's good to see the 2024 EQS SUV's larger battery paying off.

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