I seen F100's, F150's and the F250's and they seem to grow proportionately in size as they step up in the models, if they have continued with that scale a F650 must be the size of a centurian tank.
Its consumption rate at 14 litres per 100 km at 110 kph sounds like it's highway results which is a bit steep.
But I love the flames, I should get some for my ute
cheers