We installed a platform onto a 2018 BMW 300i. This platform was manufactured by Rhino Rack and is known as the Pioneer Platform. This platform is attached to the vehicles flush side rails that are clamped on by Rhino Rack's Vortex SX feet. The platform features channels that run the length of the panels to allow multiple attachment points. On top of the platform is Rhino Rack's Accessory Bars, these create an elevated attachment point for cargo boxes and other accessories that can not be mounted to the platform channels.