My Trabant has mounting point holes in the rear pillars but no captive nuts. I inserted captive nuts into the pillars to fit the belts to the rear pillars. I drilled holes in the boot floor as per the instructions for fitting Doblina lap seat belts. SECURON three point belts were used with belt extenders for the belt clips in the middle of the seats and short metal extenders for the outer belt ends. The reels are designed to be mounted at shoulder height and can be adjusted to work at any angle. This means that there is no chance of the reel getting snagged or obstructed by items in the boot.