I weighed the Corona years ago. I think that's what it came up as from memory. Also it had the stock diff, stock brakes, stock wheels and no stereo. My Corolla had almost a full tank of fuel. I reckon if I minus off 30kg for that, get a normal or lightweight battery, removed the stereo/boot install and the back seats/carpet etc I could get the weight down to just over 1000kg-1050. But I would never ruin the car for the sake of a few kg!
Have you weighed yours out of interest?