"Bar" optyics

I have bought some LED vehicle driving lights. They are driven by Cree 3W LEDS. They have "spot" sections (only moderately sopt) and "flood" sections. They work amazingly for their price and actually draw nearly the watts they claim! The trouble is both spot and flood portions are entirely circular. This of course means I am lighting up the road right in front of me and the trees above!

So I am wondering if there are "bar" optics for 3W Crees. I have some from way back, but they do not seem to work well weith the newer emitters: I got a bar, but it was not even as bright as the original flood or "spot"

Any help appreciated.