With the X4 xDrive35i engine-upgrade model no longer available, leaving the new-for-2016 BMW X4 M40i as the sole six-cylinder model in the lineup. The M Sport package for the X4 xDrive28i gets a ...

An xDrive30i badge denotes the X4's standard engine. It's a turbocharged 2.0-liter I-4 producing 248 hp and 258 lb-ft of torque, connected to an eight-speed automatic transmission and AWD.