I saw a GSP car with a Code 3 bar for the first time the other day and it wasn't bad. The car, a Charger, is the first 2010 I've seen with GSP and is set up differently than most. Instead of blue and gray, it was all gray but still with the orange lettering. It also had a regular push bumper instead of the wrap around that Chargers usually get. As for lights, the old set up was a Liberty, 2 2 head dominators in the grill, 2 angle lin 3's on the PB for intersection warning, a 6 head dominator on the rear deck, and OEM HLF/TLF all ran off a Whelen switch box and Motorola siren. This car had a Code 3 with clear lenses (as bright was a liberty but didn't seem to hurt my eyes as bad up close), Code 3 par 36 LEDs in the fog lights (pretty bright, but wasn't too impressed since one was filled halfway with water and went from flashing to an extremely dim steady burn), a Code 3 2 head tir 6 dash light on the rear deck in teal blue (not impressive) and OEM HLF/TLF. The siren speaker was mounted on the push bumper used the middle bar and flush with the passenger side vertical pole. It didn't look the best but has to be louder than what the older Chargers had. For a control box, it looked like a V-Con with a pursuit switch. It was also the first time I've seen a GSP car with a Stalker Dual Radar, which I am very jealous of.
Overall, I believe Code has stepped up their game and, if they are cheaper then Whelen, can definitely see why OHP, GSP, and others are switching. I am sure, now that the big guys have switched, a lot of smaller departments will start shopping Code 3.