The 2023 Mercedes-Benz EQS 450 Plus SUV gets an EPA-estimated 85 MPG combined, a figure that shows this vehicle’s aim: to offer the size and versatility of a luxury SUV with significantly less gas thanks to its all-electric powertrain. This isn’t about speed or off-road ability; it’s about spacious and sustainable family transportation.

City and highway performance

Looking at the EQS 450 Plus SUV’s MPG, it’s rated at 87 MPG in the city and 83 MPG on the highway. These figures represent miles per gallon equivalent (MPGe), a metric the EPA uses to compare the energy consumption of electric vehicles to gasoline vehicles. The slightly higher city rating reflects regenerative braking, which recaptures energy when slowing down and is used more often in stop-and-go traffic. While the highway number is a bit lower, both figures show the consistent efficiency of the electric drivetrain across different driving conditions. The automatic (A1) transmission delivers power smoothly, optimizing energy use whether you’re driving in the city or on the highway. For those interested, you can review EQS MPG across all years to see how this model compares to previous versions and other trims.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2023 Mercedes-Benz EQS 450 Plus SUV at $900. This is based on driving 15,000 miles per year, using national average electricity prices. This contrasts with the typical fuel costs of large luxury gasoline SUVs, which often exceed $3,000 annually. The $900 figure will be even lower if the vehicle is charged overnight with off-peak electricity rates or supplemented with solar power. For owners seeking to minimize their carbon footprint and save money, the EQS 450 Plus SUV has a clear economic advantage.

Real-world expectations

While the EPA estimates provide a benchmark, real-world MPG can change based on driving habits, weather, and terrain. Fast acceleration, frequent climate control use, and hauling cargo can all reduce efficiency. However, the EQS 450 Plus SUV includes features to help drivers optimize energy consumption, such as drive modes that prioritize efficiency and an energy consumption display. The EPA numbers provide a stable expectation of efficiency.

How it compares

The EQS 450 Plus SUV’s 85 MPG combined rating sets it apart in the luxury SUV segment by giving it significantly better “fuel” economy. The gasoline powered BMW X7 xDrive40i, for example, gets around 22 MPG combined. The hybrid Volvo XC90 Recharge manages around 27 MPG combined. Even the Lexus RX 450h+, one of the most efficient plug-in hybrid SUVs, only achieves 83 MPGe combined, which is still less than the EQS 450+. This highlights the EQS 450 Plus SUV’s strong position for buyers who prioritize sustainability and lower fuel costs, even among luxury vehicles prioritizing fuel efficiency. To see all Mercedes Benz fuel economy data will show you just how strong this electric offering is.

Tips to maximize efficiency

Use the available drive modes, specifically the “Eco” mode, to optimize the car’s energy consumption. This mode typically limits acceleration and adjusts climate control settings to prioritize efficiency.

Precondition the cabin temperature while the vehicle is plugged in. This allows you to heat or cool the interior using grid power rather than draining the battery, which saves range, particularly in extreme weather.

Minimize fast acceleration and hard braking. Driving smoothly conserves energy and maximizes the effectiveness of the regenerative braking system, which recaptures energy and returns it to the battery.

Keep tires properly inflated. Underinflated tires increase rolling resistance, which reduces efficiency. Check tire pressures regularly and inflate them to the manufacturer’s recommended levels.

Reduce unnecessary weight in the vehicle. Excess cargo adds load and increases energy consumption. Remove any items you don’t need for your journey to improve efficiency.