Download 2015 BMW X4 Official Thread: Specs, , Videos, Info Wallpaper from the all Widescreen (4K 5K 8K Ultra HD resolutions) for mobiles, tablets and desktops devices with Microsoft Windows / Apple iOS & MacOS / Android / Linux and other devices. 2015 BMW X4 Official Thread: Specs, , Videos, Info Wallpaper is part of the BMW X4 collection.