"the tank its movement is abit to brute"
Seconed...
first thing I thought (after thinking "hey, cool"^^)... when you turn, the tank "rolls", which is cool for a hovertank, but maybe it should do so more smoothly. also, why not make the turret rotate 360 degrees? Do you know the steering of the tank in UT 2004, or games similar to it? I think those are cool controls, but that's just my personal fav. Just an idea. Your controls look good as well, just make it all smoother. Maybe it's just the video as well, as you said.
I'm missing some cool particle effects... dust rising from the ground after the tank hovered over it, and smoke. Also, a better shader for the tank might be nice.
All in all: good start, keep it up! ... looks nice,
Micha