18 MPG combined is what one anticipates from a full-size, long-wheelbase luxury SUV powered by a twin-turbo V8, particularly one that carries the SV badge and the Land Rover promise of exceptional capability. This isn’t a vehicle designed for low fuel consumption; it’s engineered for elevated experiences, commanding presence, and effortless power. Buyers of the 2025 Range Rover SV LWB with the 4.4L MHEV V8 aren’t focused on tenths of a gallon. They are investing in unparalleled comfort, bespoke craftsmanship, and the quiet confidence that comes with piloting arguably the most opulent SUV on the market. The fuel economy, while clearly stated, serves as a footnote to the vehicle’s overall mission, a necessary acknowledgement of its impressive powertrain and substantial dimensions. Land Rover understands its clientele for this halo model: individuals for whom time and experience are the ultimate luxuries, and refueling stops are simply a momentary interruption, not a financial burden.

City and highway performance

The 16 MPG city rating reflects the vehicle’s substantial mass and the V8’s inherent thirst when tasked with frequent starts, stops, and accelerations in urban driving. However, the mild-hybrid system offers a subtle, unnoticeable assist, smoothing out the stop-start function and contributing to marginal gains without ever intruding on the driving experience. This isn’t a hybrid powertrain designed for EV-like city cruising. It’s an enhancement to an already potent conventional engine, primarily focused on refinement and peak efficiency rather than transformative MPG figures. On the open road, the 22 MPG highway figure is more illustrative of the 4.4L twin-turbo V8’s efficiency when allowed to settle into a rhythm. The 8-speed automatic transmission plays a crucial role here, keeping the engine operating in its most economical rev range, making the most of every drop. Cruising at highway speeds, the engine is barely audible, the cabin incredibly insulated, and the fuel consumption, while not groundbreaking, is entirely appropriate for a vehicle of this size, power, and aerodynamic profile. The Range Rover SV LWB is a supreme long-distance cruiser, and its highway efficiency underlines this capability.

Annual fuel cost

The EPA estimates an annual fuel cost of $3,200 for the 2025 Range Rover SV LWB MHEV 4.4L 8-cyl. This figure is derived from an assumption of 15,000 miles driven annually, with a 45% city and 55% highway driving mix, and using national average fuel prices for premium gasoline. For the buyer of this vehicle, this annual expenditure integrates into the overall cost of ownership, which includes significant depreciation, insurance premiums, and routine maintenance tailored for a high-performance luxury vehicle. The $3,200 figure, while substantial in isolation, is a tertiary consideration for those who prioritize the Range Rover’s unique blend of luxury, capability, and peerless prestige. It represents the cost of powering an automotive masterpiece, not an unexpected financial burden impacting purchase decisions.

Real-world expectations

In real-world driving conditions, most owners will likely find the 18 MPG combined figure to be a reasonable target, though individual driving styles, terrain, and cargo loads will undoubtedly influence results. Aggressive acceleration, frequent short trips, or prolonged idling will depress those numbers. Conversely, an owner who primarily uses the SV LWB for long-distance highway cruising with a gentle throttle hand might routinely exceed the 22 MPG highway rating. The vehicle’s substantial power delivery, particularly from the smooth, torquey V8, makes it tempting to use that performance, which naturally impacts fuel consumption. What buyers will discover, irrespective of the precise MPG, is that the Range Rover SV LWB delivers an experience commensurate with its price and promise. Fuel stops become opportunities to appreciate the vehicle’s presence, rather than moments of financial consternation. The mild-hybrid system, while not a headline-grabber for fuel economy, contributes subtly to the overall driving refinement and ensures the stop-start system operates with almost imperceptible smoothness, indirectly influencing real-world efficiency by encouraging its frequent activation.

How it compares

Comparing the fuel economy of the 2025 Range Rover SV LWB MHEV 4.4L V8 requires evaluating it against its direct luxury SUV rivals, vehicles that share its mission rather than its price point. The Bentley Bentayga Azure V8, a direct competitor in the ultra-luxury SUV segment, offers an EPA-rated 17 MPG combined (15 city/23 highway). This places the Range Rover SV LWB directly in line with another exclusive V8-powered ultra-luxury SUV, reinforcing that its 18 MPG is not an outlier but rather the expected consequence of its class and powertrain. Moving to a slightly different segment, the Mercedes-Maybach GLS 600, also with a mild-hybrid V8, returns 17 MPG combined (15 city/20 highway). Even the larger Cadillac Escalade ESV V-Series, packing a monstrous supercharged V8, manages only 13 MPG combined (11 city/16 highway), making the Range Rover’s figures look remarkably efficient by comparison. For those considering Range Rover’s own lineup, the standard wheelbase P530 offers the same 18 MPG combined, but without the exclusive SV appointments and extended rear legroom. For a broader perspective on all Land fuel economy data, other models within the Land Rover family offer varying fuel efficiencies depending on their size and powertrain, but none quite match the bespoke luxury and V8 power of the SV LWB. When considering ROVER MPG across all years, it becomes clear that while efficiency has improved, the V8’s inherent characteristics remain constant. The 2025 Range Rover SV LWB MHEV doesn’t win on MPG, but it certainly holds its own amongst a very elite group of fuel-demanding, high-performance luxury vehicles.

Tips to maximize efficiency

Engage the Eco driving mode. While this mode won’t transform the V8 into a four-cylinder, it subtly alters throttle response and transmission shift points to prioritize efficiency, making smooth, gradual acceleration the default. This is particularly effective in varied driving conditions where maintaining consistent speeds is challenging.

Anticipate traffic conditions well in advance. This allows for smoother braking and acceleration, minimizing energy-intensive stop-and-go driving. Coasting more often and easing off the throttle earlier when approaching lights or congestion can yield noticeable improvements over time.

Maintain proper tire pressure. The Range Rover SV LWB uses large, advanced tires that greatly impact rolling resistance and, consequently, fuel economy. Regularly checking and adjusting tire pressure to the manufacturer’s recommended specifications ensures optimal efficiency and safety.

Use the mild-hybrid system’s strength by allowing the engine stop-start function to operate as intended. While some drivers disable this feature, allowing it to shut off the engine at idle, particularly in city traffic, contributes to small but cumulative fuel savings without sacrificing comfort or refinement.

Avoid carrying unnecessary weight. The SV LWB is already a substantial vehicle. Shedding excess items from the cargo area or removing roof racks when not in use reduces the load on the engine, improving overall efficiency and performance. Every pound counts when optimizing fuel consumption in a vehicle of this stature.