Well i have finally got the weighing of my GTR32 done at SIMS metal on their weighbridge, car weighed in at 1410kg. This is fully loaded with all liquids and a FULL tank of petrol, excluding my weight.
This is without rear seats and panels, no rear speakers, no boot panels, no air-con, no carpeting, no spare tyre, has a rear half cage, 2 x bride zeta2 full bucket seats, 18x9 work meister s1, titanium front pipes and other miscellenous lightweight parts. Think a cat-back titanium instead of stainless steel, cf bonnet and doors, and even lighter 17" wheels will set it easily to around 1350kg or thereabouts, fully loaded with liquids and a full tank of petrol.