Oscar, it looks like you've managed to add 35Kg weight to yours
I really would take those Nissan figures with a pinch of salt to be honest.
They're probably net, which means add 10 litres of petrol (10kg) for the fuel tank to just read on the minimum, 7 litres of water for the rad (7kg), 3 litres of screen wash (3Kg), Engine oil (4kg), Auto oil (8kg), Diff (2kg) and thats already an additional 34 Kg of additional weight.