18 MPG combined for the 2026 Land Rover Range Rover SV LWB MHEV 4.4L 8-cyl is a figure that few, if any, prospective buyers will scrutinize beyond a fleeting acknowledgement. For the individuals acquiring a vehicle of this stature, the combined fuel economy number is less a concern and more an accepted characteristic. This is the top-tier, long-wheelbase Range Rover, specified in its most opulent SV trim, propelled by a potent 4.4-liter twin-turbocharged V8, even with mild-hybrid assistance. It’s an uncompromising statement of luxury, capability, and performance, designed for those whose priorities lie firmly in unadulterated comfort, commanding presence, and effortless power, regardless of the cost at the pump. The buyer for this Range Rover isn’t interested in benchmarking four-cylinder crossovers, they’re assessing what represents the pinnacle of travel for themselves and their passengers, whether traversing continents or navigating the valet line at a five-star establishment. This is not a vehicle about fuel economy, it’s about the economy of scale in life that allows one to own it.

City and highway performance

The EPA rates the 2026 Range Rover SV LWB MHEV at 16 MPG in the city and 22 MPG on the highway. These figures are entirely consistent with a vehicle of its substantial mass, aerodynamic profile, and powerful 4.4L 8-cylinder engine. In urban environments, where stop-and-go traffic and continuous acceleration cycles demand significant energy, the 16 MPG city rating reflects the physics at play. Even with the mild-hybrid system providing a subtle boost and aiding engine stop-start functionality, moving well over two-and-a-half tons of luxury requires considerable fuel. On the highway, where sustained speeds allow the 8-speed automatic transmission to settle into its higher gears, the efficiency improves to 22 MPG. This highway figure is respectable for an SUV of this caliber, demonstrating the engine’s capability to cruise efficiently when not taxed by constant demands for acceleration. The mild-hybrid system primarily assists in smoothing low-speed driving and enhancing the smooth operation of the stop-start system, rather than dramatically altering overall MPG figures for a V8 of this displacement.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2026 Land Rover Range Rover SV LWB MHEV 4.4L 8-cyl at $3,200. This calculation is based on an assumed driving distance of 15,000 miles per year, with 45% of that mileage in city driving and 55% on the highway, combined with national average fuel prices, which for this vehicle is premium gasoline. Buyers of the SV LWB model understand that the cost of fuel is a minor detail in the overall ownership equation. The $3,200 figure represents a consistent and predictable expense given average driving habits. For the clientele considering a vehicle with a six-figure starting price, a yearly fuel expenditure of this magnitude is simply another line item in the budget, far overshadowed by acquisition costs, insurance, and routine maintenance that align with ultra-luxury vehicles. It&#8217s a cost of doing business for those who demand the ultimate expression of the Range Rover experience.

Real-world expectations

In real-world driving conditions, proprietors of the Range Rover SV LWB can expect their actual fuel economy to closely align with, and sometimes dip below, the EPA estimates. Aggressive driving, frequent use of the vehicle&#8217s immense power, or consistent driving in heavily congested urban areas will naturally push the MPG figures towards the lower end of the spectrum, possibly even below the 16 MPG city rating. Conversely, long, unhurried highway journeys with a light foot can see the 22 MPG highway figure met or slightly exceeded. The mild-hybrid system is designed to smooth out the power delivery and enhance the efficiency of auxiliary systems, but it cannot fundamentally alter the thirst of a twin-turbocharged V8 powering such a substantial and luxurious vehicle. Anticipate the vehicle’s specific mission – commanding performance and unflappable comfort – to take precedence over chasing every last fraction of an MPG. For more information on all Land fuel economy data, please see our dedicated brand page.

How it compares

When placed against its chief rivals, the 2026 Range Rover SV LWB&#8217s fuel economy is competitive within its exclusive segment. For instance, the Bentley Bentayga Speed, also equipped with a powerful W12 engine, achieves a similar 17 MPG combined (14 City / 20 Highway). A Cadillac Escalade-V, with its supercharged V8, registers an even lower 16 MPG combined (14 City / 18 Highway). The Mercedes-Maybach GLS 600, powered by a 4.0L V8 with EQ Boost, slightly edges out the Range Rover at 18 MPG combined (16 City / 21 Highway). Even the Aston Martin DBX707, a more performance-oriented SUV, manages a combined 17 MPG (15 City / 20 Highway). What becomes evident is that vehicles in this ultra-luxury, high-performance SUV category consistently showcase combined MPG figures in the mid to high teens. The Range Rover SV LWB&#8217s 18 MPG combined is squarely in the middle of this elite pack, reinforcing that fuel efficiency is a secondary consideration in this sphere, with the primary focus on unparalleled luxury, presence, and powerful propulsion. For more information on ROVER MPG across all years, please see our dedicated model archives.

Tips to maximize efficiency

Maintaining consistent accelerator inputs is one of the most effective ways to optimize fuel economy in the Range Rover SV LWB. Avoid erratic acceleration and braking; instead, aim for gentle, progressive power application. The V8’s considerable torque allows for effortless cruising without constantly digging deep into the throttle.

Regular maintenance is crucial, even for a vehicle like this. Ensure the engine oil, air filters, and tire pressures are checked and replaced according to Land Rover’s schedule. A well-maintained engine and properly inflated tires reduce drag and friction, allowing the powertrain to operate at its most efficient.

Use the adaptive cruise control on highways whenever practical. The system is designed to maintain a steady speed and distance from other vehicles, often resulting in smoother acceleration and deceleration cycles than human input, leading to slight improvements in fuel consumption.

Use the mild-hybrid system effectively by allowing the engine stop-start function to operate as intended. While it may seem like a minor detail, reducing idle time, especially in city traffic, contributes to cumulative fuel savings throughout the course of a drive.