MotorWeek is first on the scene in South Carolina as BMW celebrates the 25th anniversary of its Spartanburg plant, and unveils its all-new X3.

The Spartanburg plant is the largest BMW plant in the world and produced more than 411,000 vehicles in 2016.

The all-new X3 will roll off the assembly line and into dealerships in late fall 2017, but we've already got our first look…and ride…in the third generation of the X3.

Comparing the exterior dimensions, the X3 remains largely the same. However, the wheelbase has been extended by 2.2-inches. A new front fascia is highlighted by a 3-dimensional Kidney Grille and hexagonal fog lights. The rear shows off a sloping spoiler, twin-tailpipes, and for the first time in North America, an optional factory-installed trailer hitch.

The interior comes with standard sport seats, 3-zone automatic climate control and remote-release rear seatbacks. A larger head-up display, 10.25-inch touchscreen and gesture control are also available.

While we weren’t able to get behind the wheel, we managed to ride along at the BMW Performance Center in the new X3 M40i. A couple of times around the track gave us a little taste of what the 3.0L turbocharged inline-6 engine feels like. With an output of 355 hp, BMW says the X3 M40i can go from 0-60 mph in a best-in-segment 4.6 seconds. 

We'll have more on the new X3 soon!