18 MPG combined is the fuel economy figure one expects from a stately, long-wheelbase luxury SUV with a twin-turbo V8, designed for effortless power and supreme comfort rather than outright efficiency. This isn’t a vehicle for those prioritizing marginal gains at the pump; it’s for buyers who value the commanding presence, bespoke craftsmanship, and the whisper-quiet, authoritative thrust of an eight-cylinder engine, acknowledging that such indulgences come with a corresponding appetite for premium fuel.

City and highway performance

The 2025 Range Rover SV MHEV, with its 4.4L 8-cylinder engine and mild-hybrid system, registers 16 MPG in city driving. This figure reflects the inherent challenges of moving a substantial luxury vehicle through stop-and-go traffic. While the MHEV system aids in smoothing out autocross restarts and recuperating some energy during deceleration, it’s not designed to fundamentally alter the V8’s thirst in urban environments. On the open highway, however, the picture improves with a respectable 22 MPG. Here, the Range Rover SV settles into its stride, the 8-speed automatic transmission managing power delivery, allowing the engine to operate efficiently at cruising speeds. The aerodynamic profile, effective for a vehicle of its stature, contributes to this more favorable highway rating, ensuring long-distance journeys are not only supremely comfortable but also relatively efficient for a vehicle of this caliber. For all Land Rover fuel economy data, you can find more information here.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2025 Range Rover SV MHEV 4.4L 8-cyl at $3,200. This figure is calculated based on an assumption of 15,000 miles driven per year, split between city and highway driving, using national average fuel prices. It’s a straightforward calculation designed to provide a standardized benchmark. For the owner of a Range Rover SV, this annual expenditure is a known factor, often secondary to the vehicle’s acquisition cost and its blend of luxury, capability, and performance. This isn’t a purchase driven by fuel cost minimization; it’s a statement of intent, and the fuel budget is simply part of the overall ownership experience, a minor percentage of the total investment in a vehicle of this prestige.

Real-world expectations

Expect real-world fuel economy for the 2025 Range Rover SV MHEV to hover closely around the EPA’s combined 18 MPG, potentially dipping slightly lower if your driving leans heavily towards urban environments or aggressive acceleration. Owners of vehicles like this often aren’t hyper-mileage enthusiasts; the temptation of that twin-turbo V8’s surge is potent, and using its full potential will inevitably consume more fuel. Conversely, those who regularly embark on long, steady highway cruises might find themselves nudging closer to, or even slightly exceeding, the 22 MPG highway rating. The mild-hybrid system provides a discernible smooth feeling to the powertrain, but its primary role isn’t massive MPG gains. It’s more about refining the V8 experience, subtle torque fill, smoother stops, and enhanced overall driveability. The weight of the vehicle, the intricate all-wheel-drive system, and the sheer power on tap are the dominant factors influencing consumption, regardless of driving style.

How it compares

In the rarefied air of ultra-luxury V8 SUVs, the Range Rover SV’s 18 MPG combined positions it squarely within expectations. Consider the Bentley Bentayga Speed, another formidable V8 titan, which manages a combined 17 MPG (15 city/20 highway). The SV holds a slight edge there, albeit with a different brand of opulence. The Mercedes-Benz GLS 580, powered by a 4.0L twin-turbo V8 with mild-hybrid assistance, also achieves 18 MPG combined (16 city/21 highway), making it a direct competitor in terms of efficiency. For those who prioritize performance above all, the BMW X7 M60i offers a similar powertrain setup and achieves 18 MPG combined (16 city/20 highway). These comparisons reveal that the Range Rover SV isn’t an outlier; it’s right in line with, or even slightly better than, its direct V8-powered rivals. Buyers in this segment understand that a powerful, V8 in a large luxury SUV will inherently consume more fuel than smaller, less capable vehicles. They are paying for the effortless grunt, the refined power delivery, and the exclusivity, for which these MPG figures are an accepted part of the equation. Explore ROVER MPG across all years here.

Tips to maximize efficiency

While maximizing fuel economy may not be the primary concern for an SV owner, subtle adjustments can still make a difference. Use the vehicle’s adaptive cruise control on highways; its algorithms are often more efficient at maintaining speed and distance than a human foot, avoiding unnecessary acceleration and deceleration.

Regularly check and maintain proper tire pressure. An underinflated tire increases rolling resistance, forcing the powerful 4.4L V8 to work harder, directly impacting fuel consumption and handling dynamics, particularly for a vehicle of this weight.

Pay attention to your driving inputs, especially throttle application. The SV’s V8 has immense power on tap, but smooth and deliberate acceleration, rather than abrupt bursts, will keep the engine operating in its most efficient ranges more often in city driving.

Minimize unnecessary weight in the vehicle. While the SV is designed to carry occupants and their gear in supreme comfort, removing heavy items that aren’t regularly used reduces the engine’s workload, contributing to marginally better fuel economy for every journey.

Be mindful of extended idling. The mild-hybrid system does assist with engine stop/start in certain conditions, but avoiding prolonged idling periods, like waiting in line or at a standstill, effectively reduces fuel waste from the V8 at zero velocity.