The 2018 BMW M550i XDRIVE stands as a benchmark in the luxury performance segment, delivering compelling power and precision in a sleek, dynamic package. At its core lies an engineering marvel—the 3.0-liter twin-turbocharged inline-six engine in XDRDUXTRA AWD setup—delivering both raw power and refined responsiveness.
The heart of the 2018 M550i XDRIVE’s performance is its 3.0-liter inline-six engine, producing 523 horsepower and 493 lb-ft of torque. With advanced twin-turbo charging and precise fuel injection, this engine balances brute force with efficiency, enabling 0-60 mph in under 4.5 seconds. Its compact layout enhances weight distribution, contributing to the vehicle’s exceptional handling balance.
The XDRDUXTRA AWD system seamlessly integrates torque to all wheels, optimizing grip and stability across diverse conditions. Combined with adaptive torque vectoring and electronic differentials, this setup ensures confident handling in both track environments and daily driving. The XDRIVE system enhances the M550i XDRIVE’s reputation for precision and control.
Beyond raw numbers, the 2018 M550i XDRIVE engine reflects BMW’s commitment to precision engineering. Lightweight materials, refined combustion, and acoustically optimized intake systems deliver a harmonious blend of performance and luxury. Every component is tuned for responsiveness, ensuring the engine feels as refined as it performs.
The 2018 BMW M550i XDRIVE engine is more than a powertrain—it’s a statement of performance, innovation, and craftsmanship. For enthusiasts seeking power wrapped in luxury, this engine remains a standout. Upgrade your drive today and experience the seamless blend of torque, agility, and precision.
SPECIFICATIONS 2018 BMW M550i xDrive VEHICLE TYPE front-engine, all-wheel-drive, 5-passenger, 4-door sedan PRICE AS TESTED $87,985 (base price: $74,395) ENGINE TYPE twin. Detailed specs and features for the Used 2018 BMW 5 Series M550i xDrive including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. Discover key facts about the 2018 BMW M550i xDrive reliability, owner feedback, and comparisons with competitors.
Specs datasheet with technical data and performance data plus an analysis of the direct market competition of BMW M550i xDrive in 2018 the model with 4-door sedan body and V-8 4395 cm3 / 267.9 cui, 340 kW / 462 PS / 456 hp (SAE net) of power, 651 Nm / 480 lb-ft of torque, 8. Specs of BMW 5 Series Sedan (G30) M550i (462 Hp) xDrive Steptronic /2017, 2018/. View complete technical specifications for 2018 BMW M550i xDrive.
Includes performance data, fuel economy, dimensions, engine details, and more. View detailed specs, features and options for the 2018 BMW 5-Series M550i xDrive Sedan at U.S. News & World Report.
We review the new 2018 BMW M550i luxury sedan - the German's 455. Read our 2026 BMW 5-Series review for information on ratings, pricing, specs, and features, and see how this sedan performed in our testing. See detailed specs, features, packages and dimensions by trim level for the 2018 BMW M550.