Hey Swordds... own a '15 V7, NOT a V7II.
However, as to gas mileage... If I fill to the bottom of the filler neck (I can fill higher than that, but it's a pain in the ass to do so), I generally get 290 km (180 miles) before the fuel light comes on, and then I have another 100 km (62 miles) left.
If I want to be patient and do the "bit of gas, let it settle, bit of gas, let it settle" routine to push the fuel higher in the tank... I figure there's about 3-4 litres space in there, so, good for another 80-ish km (50 miles).
On average, I seem to get between 4.25 and 4.75 litres per 100 km.