The first concept images of BMW’s next crossover coupe, the X4, have begun to crop up. Due to hit the streets later this year, the X4 will snugly fill the void between BMW’s X3 and X5 models. It can be seen the flesh (steel) at the 2013 Shanghai auto show next week. BMW has yet to share any specs on this model, but we’ll surely find out next week. Also note, the X4 will be built right here in the good ol’ U.S. of A. at BMW’s Spartanburg, South Carolina plant.