I got the exact same problem... This is a very short story of what happend to me
I got a 95 R33 gtst and last night I went on the freeway, got a bit excited and while doing a 100km on 5th, I tired changing to 3rd but I missed gears and lost half of the clutch padel's pressure. Pulled over and left the car running, mean while I could smell the clutch burning. while the car was turned on, I couldn't change gears but when I turned if off, the gears are ok.
I waited for about 20mins then was able to change gears with forcing it in and pressing the clutch paddle with a bit of a force. I heard some sort of a grinding noise (from the gearbox) the car moved very heavily then I called in a tow truck and .... The END
What could this possibly be??
has anybody had a similar problem??