What Does the 'x' in BMW X4 Mean?

I recently saw the BMW X4 and was wondering what the 'x' in its name stands for. Can you provide any insight?

The 'x' in BMW X4 stands for 'crossover', emphasizing the car's mix of SUV and coupe features.

BMW used the 'x' to differentiate its SUV models from its sedans and coupes. So while it doesn't have a specific meaning, it's a nod to the car's crossover nature.

The 'x' also symbolizes BMW's desire for adventure and going beyond the norm. This is reflected in the X4's sporty design and performance.