Luke’s landspeeder could sound like a jalopy, complete with bad muffler. Whenever Luke jumps in to speed off, it takes several sputtering starts to get it going.
The Jawa sandcrawler could sound like a garbage truck.
The SE entrance into Mos Eisely could have real world traffic noises. The infamous Jawa falling off the Ronto scene could have voices of angry drivers cursing.
The lame CGI droid slapping the flying droid could be provoked by a subtitled insult. “Nobody is going to buy an action figure of you!”