* xDrive35i: This model featured a 3.0-liter turbocharged inline-six engine producing 300 horsepower.
* xDrive50i: This model boasted a 4.4-liter twin-turbocharged V8 engine generating 400 horsepower.
There was also a diesel option (xDrive35d) with a 3.0-liter turbocharged inline-six diesel engine producing 265 horsepower.
To know the exact engine size of a specific 2011 BMW X5, you'll need to check the vehicle's VIN (Vehicle Identification Number). You can find this number on your registration, insurance documents, or on the driver's side dashboard.
