Photo of 2019 QX50 courtesy of Infiniti.

Photo of 2019 QX50 courtesy of Infiniti.

Infiniti debuted its 2019 QX50 luxury crossover ahead of the Los Angeles Auto Show as the brand's first vehicle to incorporate Nissan's ProPilot semi-autonomous driver assist system.

The new QX50 is powered by a 2.0-liter inline-four VC-Turbo engine that makes 268 horsepower and 280 pound-feet of torque. The mid-size crossover should provide 27 miles to the gallon combined and 26 mpg if equipped with all-wheel drive.

The engine is able to adjust the length of each cylinder's piston stroke to switch to a more fuel efficient mode.

Nissan has rolled out its ProPilot technology that operates as enhanced cruise control on the 2018 Rogue and Leaf models.