The first BMW X model was showcased way back in 1999 when the X5 came into being. The BMW X3 and BMW X1 were likewise the first SAVs in their class and continue to set the pace among their rivals today. This development took on a new dimension in May 2008 with the introduction of the BMW X6 – the first Sports Activity Coupe (SAC). This still unique concept brought together the rugged looks of a BMW X model with the emotional aura and sporting character of a BMW Coupe for the first time. The enduring popularity of BMW’s first SAC is borne out by its consistently high sales figures. The short history of the BMW X range is already a successful one. Since the first BMW X model took to the stage, average sales across the BMW X line-up have progressed on a constant upward curve: one in four new BMW cars is now a BMW X model. With the BMW Concept X4, the BMW Group offers a preview of the future of the BMW X family. It takes no more than a first glance to see how smoothly the qualities of a BMW X model can blend with the genes of a BMW Coupe. The new Sports Activity Coupe concept from BMW is poised to continue the success story of the BMW X6 in a new vehicle class. Eye-catching proportions, tight contours and numerous high-quality details produce an unrivalled product character brimming with emotional appeal, dynamism and the sturdiness you would expect from a BMW X model, while at the same time holding out the promise of outstanding performance and driving dynamics. The X4 is no doubt a beautiful looking car but what lurks under the hook? So far BMW have not revealed to much about the cars specifications but we can surely expect to find a TwinPower Turbo 2.0-liter four-cylinder with 240bhp and 352Nm of torque and there will most definitely be a more powerful TwinPower Turbo 3.0-liter inline-six with 300bhp and 406 Nm of torque. The X4 is most likely to go on sale in the summer of 2014.