It’s possible that holographic technology wasn’t a high a priority as there FTL and antigravity engines to them due to a cultural difference. It could also be the fact it is a science fantasy story written in the late 70's. Kind of like how in Star Trek they settle for flip phones with less features than the 1990's…

If I remember right from the diagram that came with my toy X-34 the headlights are behind the grill, and from what I’ve read in the Star Wars RPG books (by Westend Games) there were hardtop, and convertible modles. Luke’s was a convertible, and may have had a damaged top, or he left it down for a breeze cause he…