I've just tried to hitch my 12 year old trailer to my brand new Rav4 which came with a factory fitted detachable towbar. It turns out the centre of the tow ball is ~50cm above the ground and the front wheels of my double axle trailer are off the ground by ~ 4cm! I did not have any problems with my land rovers . I've read that The EC Directive 94/20/EC (The standard that all towbars are designed to) states that the tow ball height should be'between 350 and 420mm from the ground with the vehicle i