BMW B58 X6: Power, Precision, and Performance Redefined

The BMW B58 X6 stands as a benchmark in the luxury SUV segment, blending aggressive styling with the refined power of its B58 inline-six engine. This is not just a vehicle—it’s a statement of performance and sophistication on every drive.

Powered by BMW’s renowned B58 inline-six, the B58 X6 delivers responsive acceleration and smooth high-speed cruising. With up to 523 horsepower in the M50i and 600+ in the X6 M50i, this engine balances brute force with precision engineering, offering a seamless blend of power and efficiency that sets it apart in its class.

Inside, the B58 X6 impresses with premium materials, intuitive digital interfaces, and refined ergonomics. The spacious cabin features adaptive seating, advanced climate control, and an intuitive iDrive 8 system, ensuring comfort and connectivity without compromise. Every detail reflects BMW’s commitment to luxury and innovation.

The B58 X6 combines a low center of gravity with advanced chassis tuning for sharp handling and confident stability. Whether navigating city streets or winding mountain roads, this SUV delivers a balanced, engaging drive that satisfies both casual cruisers and driving enthusiasts alike.

The BMW B58 X6 redefines what a luxury SUV can be—where power meets poise and technology enhances every journey. Experience the perfect fusion of performance, comfort, and style. Upgrade your drive today and discover why the B58 X6 is more than a car: it’s a benchmark in automotive excellence.

The BMW B58 is a turbocharged straight-six engine, which began production in 2015. [1] The B58 replaced the N55 and was launched in the F30 340i. [2] The B58 is part of BMW's modular engine family, each engine using a displacement of 500 cc (30.5 cu in) per cylinder, following the B38 and B48 engine.

[3] The B58 engine was named to Ward's World's 10 Best Engines five times, in 2016 (installed. The B58 engine is featured in various BMW models, including the M340i and 340i from the 3 Series, certain variants of the 5 Series and 7 Series, X Series SUVs like the X3 M40i, X5, X6, and X7, as well as the Z4 Roadster and some 8 Series models. BMW's B58 turbocharged inline-six powers 41 models across BMW, Toyota, Morgan, and Ineos.

A 2025 update adds more power, torque, and efficiency. Some of them are: BMW X4 BMW 5 Series BMW X6 BMW 8 Series Schedule a Test Drive Online The B58 engine offers spirited touring capability for driving to and from Cape Coral. BMW vehicles with the B58 powertrain, such as the BMW X5, the BMW 3 Series, and the BMW X7, provides an optimal balance of power, responsiveness, and everyday drivability.

BMW X5 40i, X6 40i and X7 40i Ranging from the 5 seater X5 to the luxurious 7 seat X7, this trio of upscale BMW SUVs all rely on the B58 engine for motivation. Delivering 335 horsepower and 331 lb-ft of torque, these substantial yet surprisingly rapid family haulers each hit 60 mph in under 5.5 seconds. The BMW X6 40i, equipped with the B58 engine, fused coupe-like aesthetics with SUV practicality.

The B58 engine's 335 horsepower ensured brisk performance while its efficiency contributed to respectable fuel economy figures. Instead of six exhaust ports on the outside there are just two. The cylinder head is obviously a different casting, however, most of the valvetrain, VANOS, and Valvetronic is the same across all B46 and B58 variants.

BMW only used this engine on 2020+ 540i, 740i, 840i, X5, X6, and X7 "40i" models as well as the 2019. Explore the BMW B58 straight-six engine's reliability, performance variants like the S58, and its future outlook amidst evolving emissions laws. A slightly detuned version of the B58 unit with 340 PS (335 hp) powers the 40i variants of the 5 Series, 7 Series, 8 Series, X5, X6 and X7.

For the upgraded generation of the B58 powerplant, BMW engine developers have made an extensive use of aluminum, which is 100% used for the crankcase and cylinder head. Explore all the BMW and non-BMW cars with the B58 engine, its specs, pros, common issues, and how it compares to Toyota's legendary 2JZ.