could someone please tell me how i would go about changing my gearknob as its an 1.1 mk1 gearstick and its all moulded together

as you can see in the pic its not like the vtr gear stick so what is the best way to change the gear knob, do i have to get a new gearstick?
thanks
o and also why does it have that little vent just back from the gearstick because the vtr have electric windows there so is it just there for show or something

as you can see in the pic its not like the vtr gear stick so what is the best way to change the gear knob, do i have to get a new gearstick?
thanks
o and also why does it have that little vent just back from the gearstick because the vtr have electric windows there so is it just there for show or something
