C5 75kg max towball load is inadequate for a 2000kg caravan in Australia. Ball load usually 10% of gross 'van mass. C5 has long rear overhang, lifts the front, not good for FWD traction or stability. I am disappointed. The DS safari is such a great tow vehicle, but it is not diesel (or is it, or can it be?) ​DS has a short rear, Has anyone done or heard of adding electric RWD to a C4 wagon, for better traction with a 'van, or poor roads/conditions? This would need a lot of computer control, I guess. We don't want to buy a 4WD - too expensive to buy and run, plus we want to travel in comfort towing a 'van around a 'lap' of Aus. Any ideas?