21 MPG combined requires context when discussing the 2021 BMW X7 xDrive40i. This isn’t a vehicle for hypermiling, it’s for prioritizing space, luxury, and presence. The X7 xDrive40i is for families who need three rows, appreciate a refined driving experience, and want build quality and brand recognition. They accept 21 MPG as the cost of admission into the large luxury SUV club.

City and highway performance

The EPA estimates for the 2021 BMW X7 xDrive40i are 19 MPG in the city and 24 MPG on the highway. These numbers reflect the turbocharged 3.0L inline-six engine under different conditions. Stop-and-go will lower fuel economy, while consistent highway speeds allow the engine to cruise efficiently, using the eight-speed automatic transmission’s taller gears. The xDrive all-wheel-drive system adds a slight parasitic drag compared to a rear-wheel-drive version (which doesn’t exist for the X7).

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 BMW X7 xDrive40i is $2,750. This assumes 15,000 miles per year and uses national average fuel prices. Individual fuel costs vary depending on local fuel prices, driving habits, and city versus highway miles. Premium fuel is recommended, raising the overall cost.

Real-world expectations

The EPA estimates provide a comparison point, but real-world fuel economy may differ. Drivers who frequently use the X7’s performance will likely see MPG lower than the official ratings. Those who prioritize smooth acceleration and anticipate traffic could achieve MPG closer to, or even above, the EPA estimates. Understanding your driving style’s effect on the X7’s powertrain is key.

How it compares

Compared to other large luxury SUVs, the 2021 BMW X7 xDrive40i’s fuel economy is in the middle. The Mercedes-Benz GLS 450 achieves a similar 20 MPG combined. The Land Rover Range Rover, with its larger V8 engines, offers lower economy, often in the mid-teens. The Acura MDX (non-hybrid) manages around 22 MPG combined, but offers less luxury and a less powerful engine compared to the X7. Buyers might look at the Lincoln Aviator Grand Touring, which trades gasoline fuel economy for electric range in shorter trips. Consider whether the trade-offs in fuel economy are worth the gains in performance, luxury, or technology.

Tips to maximize efficiency

Use the X7’s driving mode selector. “Eco Pro” mode will remap the throttle, adjust shift points, and optimize energy usage, trading performance for improved fuel efficiency. This mode is most effective during steady-state highway cruising or in light city traffic.

Maintain proper tire inflation. Under-inflated tires increase rolling resistance, reducing fuel economy. Check your X7’s tire pressure regularly and inflate them to the specifications on the doorjamb sticker. This simple step can make a difference.

Anticipate traffic flow and avoid hard acceleration and braking. Smooth driving is key to maximizing fuel efficiency in any vehicle, especially in a large SUV like the X7. Read the road ahead, anticipate traffic lights, and maintain a steady pace.

Minimize idling. Letting the engine idle consumes fuel. If you’re stopped for more than a minute or two, turn off the engine. Modern engines start quickly.

Be mindful of cargo weight. The heavier the vehicle, the more fuel it consumes. Remove unnecessary items from the X7 to reduce weight and improve fuel economy. While the X7 is built to carry a load, limiting unnecessary cargo reduces strain on the drivetrain.

Consider exploring all Bmw fuel economy data to understand BMW’s overall efficiency strategy. Also, be sure to check X7 MPG across all years to see how this model’s efficiency has evolved.