what you have here is the clutch plate siezed to the flywheel. depending on front or rear wheel drive, jack up both drive wheels and start the engine, then whilst ensuring the vehicle is in neutral, rev the engine at a fast pace (no i am not taking the p**s) the driven wheels will now be spinning, to free the clutch, apply brakes as hard as you can. this will free the plate.
keith harding, March 2007