Attach text to a cars roof

[benwilkins]

Is there anyway to determine where the x,y,z is of a cars roof?

I am trying to display a small text box above the roof, but say for instance its a bike, the text box is higher, if its a big truck, the text box is below the roof.

[PaiN^]

"onClientRender" 
getElementPosition 
getWorldFromScreenPosition 
getDistanceBetweenPoints3D 
dxDrawText 

[DiSaMe]

getElementMatrix 
getElementBoundingBox 

These two functions are enough to get the position where the top of the car is.