Do you have one that lights up a few sections so it looks like cab lights?

Hello, our color changing light bar has strobe function; there are up to 40 patterns; when it strobes, there could be one part lights up while the other part won't, please check this video, https://www.facebook.com/vividlightbars/videos/2153102118041725/ or our color changing light bar https://www.vividlightbars.com/collections/color-changing-curved-light-bar-with-wireless-remote/products/waterproof-54-curved-led-light-bars 

Can you build a spot light only curved 54 inch light bar? Do not want the flood beam pattern, just want spot light pattern on light bar.

Yes, of course. we have the spot pattern light bar. you can leave a notes to let us know you want spot light pattern when you place the order, we will arrange your order according your notes.