OK.... I'm going out on a limb here, and I hope this is the right place, but my favorite bar of all time was the late '80's to early 90's (??) XL 5000 that was on Boston PD units. It was a sealed beam, double blue to the front with small, square, clear cutouts for the diamond front mirrors, but red and blue in the rear, with small, square, amber and clear cutouts for the back. I also believe the 90 degree sides of the bar were clear. I don't remember on what side the rear the clear/amber squares were located. Do any of you folks know if any of these bars still exist?