The X5 4.4i adds BMW's powerful 4.4-liter V8 engine, which adds 33 horsepower this year for a total of 315, matched with a new six-speed automatic. The 4.4i is now almost as powerful as last year Detailed specs and features for the Used 2005 BMW X5 4.8is including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more. The M550i uses BMW's twin-turbo 4.4-liter V8, with 523 horsepower and 553 pound-feet of torque running through an 8-speed automatic transmission. The E53 BMW X5 is surprisingly cheap now but can be a bit unreliable, so here's a helpful buyer's guide for potential customers. the 3.0 liter inline-six and a 4.4 liter V8. Both are known to The high-performance X5 M is powered by a twin-turbo 4.4-liter V-8 engine that makes 567 hp and 553 pounds-feet of torque. The engine works with an eight-speed automatic transmission, and power is The 2010 BMW X5 is available in 35i, 35d and 50i models. while the 50i is driven by a 400-horsepower twin-turbocharged 4.4-liter all-aluminum V8. Both engines feature direct injection The BMW V8 engine. As you could expect, the V8 engine that is available for the 2021 BMW X5 sits under the hood of the M trim level of the car. The BMW X5 M50i provides drivers with the V8 experience they are looking for, with a 4.4-liter V8 engine under the hood. Of course, that doesn’t come without the downfall of relatively abysmal gas 8.3 / 10. The 2018 BMW X5 serves as a benchmark for the modern luxury performance SUV. It impressively combines the attributes you normally associate with a BMW sedan and then adds true utility. A cPgh.