You can already buy a BMW 3-Series in sedan, coupe, station wagon and X3 “cute-ute” bodystyles, and for some automakers that might be enough. For niche-crazed BMW though, it’s just the beginning. A 3-Series GT is planned in the mold of the 5-Series GT, as a midway-point between the coupe, sedan and station wagon versions. You know, in case you can’t decide which you want. “This has never existed!” screamed Autobild… back in 2008. Of course, now it does exist in the form of the 5-series GT, which could actually end up replacing the 5-series wagon in the US market. And as the march of the niche vehicles rolls onward, there’s one more segment that the 3-series architecture still hasn’t capitalized on: the jacked-up midway point between coupe and SUV. That’s right babies, the X4.