The next model is a Scania 12x4x6 heavy transport tractor.
It is used with a special build lowloader with extra long neck.
This is for better weight distribution. You also notice the cut off roof, which is a common thing here in Holland, It's allowed to drive with the boom of a crane or pile rigger over the cab, as long as you don't go higher then 4 meters.
This delivers some special trucks, often the cab of a car carrier is used, because they are low, so you can put a car over the roof. There are lot's of small companies here in Holland that make these conversions.