Differentiating it from the X3, however, it will boast individual styling to help justify the higher price tag of around $42,000. Think of the difference between the X5 and X6 and you're likely on the right track. Engine options have yet to be announced but should ape the four- and six-cylinder units found in the X3, including a 300-horsepower turbocharged 3.0-liter straight-six. M Performance
and full-on X4 M models could also be in the cards, potentially to include the turbo six earmarked for the next M3. Whatever the motivation, the X4 is expected to be built in Spartanburg, SC, alongside the X3, X5 and X6.