19 MPG combined isn’t going to win any fuel-sipping contests, but for the 2018 BMW Alpina B6 xDrive Gran Coupe, it’s almost beside the point. This isn’t a vehicle designed for hypermilers. It’s a hand-finished, high-performance luxury saloon that trades on exclusivity, effortless power, and a unique blend of comfort and athleticism. The sort of person signing the check for a B6 isn’t overly concerned with squeezing every last mile from a gallon; they’re focused on experiencing a rare and exceptionally crafted machine.

City and highway performance

The Alpina B6’s fuel economy breaks down to 16 MPG in the city and 25 MPG on the highway. The city figure reflects the demands placed on the B6’s twin-turbocharged 4.4-liter V8 in stop-and-go traffic. Expect frequent trips to the gas station if your daily commute is primarily urban. The highway number is more respectable, showcasing the engine’s ability to cruise comfortably and efficiently at higher speeds. The eight-speed automatic transmission (S8) also plays a role here, offering smooth shifts and helping to keep the engine in its optimal rev range for fuel conservation on long journeys. This split suggests the B6 is best suited for owners who can regularly stretch its legs on open roads.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 BMW Alpina B6 xDrive Gran Coupe to be exactly $3,050. This figure is based on driving 15,000 miles per year and using the national average fuel price for premium gasoline, which the B6 requires. It’s a substantial sum, undoubtedly, and one that reflects both the engine’s displacement and the need for premium fuel. For comparison’s sake, consider other expenses this vehicle’s owner likely incurs: country club dues, private school tuition, luxury vacation expenses, and you’ll understand why fuel spend is unlikely to be a major concern.

Real-world expectations

While the EPA provides a standardized fuel economy estimate, real-world mileage will vary depending on driving style, road conditions, and maintenance habits. Aggressive acceleration, frequent hard braking, and consistent use of the B6’s power will obviously reduce fuel economy figures. A more relaxed driving style, with gradual acceleration and consistent speeds, will help you get closer to the EPA estimates. Tire pressures, vehicle weight, and even the grade of fuel used can also have an impact. Keep in mind that the Alpina B6 rewards smooth, deliberate inputs, both in terms of performance and fuel efficiency.

How it compares

In the realm of high-performance luxury sedans, the B6’s fuel economy places it among similar alternatives, though some offer slight advantages. The Mercedes-AMG E63 S, for example, also powered by a twin-turbo V8, posts EPA figures of 16 MPG city and 23 MPG highway, negligibly different from the Alpina in the city, but slightly lower on the highway. Even the less powerful BMW M550i xDrive, with its own twin-turbo V8, achieves 18 MPG city and 25 MPG highway. These differences are worth noting, but probably won’t make or break a purchase decision at this level. Considering all Bmw fuel economy data is essential. Owners often accept the trade-off for the B6’s bespoke character, higher performance output, and enhanced exclusivity compared to its German rivals. This is especially true compared to the ALPINA MPG across all years.

Tips to maximize efficiency

Always ensure your tires are properly inflated to the recommended pressure. Underinflated tires create more rolling resistance, forcing the engine to work harder and burn more fuel. Check your tire pressures regularly, especially during seasonal temperature changes, as temperature affects tire pressure.

Avoid aggressive acceleration and hard braking. The Alpina B6’s powerful engine is tempting to unleash, but doing so constantly drains fuel quickly. Anticipate traffic flow and accelerate and decelerate smoothly to conserve fuel.

Minimize idling. Letting the engine idle for extended periods consumes fuel without moving the vehicle. If you’re stopped for more than a minute, consider turning off the engine, especially if you’re waiting in a parking lot or at a long traffic light.

Regularly maintain your vehicle. A well-maintained engine operates more efficiently. Follow the manufacturer’s recommended service schedule, including oil changes, air filter replacements, and spark plug inspections. Neglecting maintenance can reduce fuel economy.

Lighten the load. Excess weight in the vehicle reduces fuel economy. Remove unnecessary items from the trunk and passenger compartment. The less weight the engine has to haul, the more efficiently it will operate.