The Milner (Paul LeMat)coupe plate? Anyone that's a fan of the movie (I have been, since I was about 6 and first watched it) knows that plate number. THX 138.
The dragster was from the somewhat obscure sequel.
The 58 Impala mentioned above was "owned" by Steve Bolander (Ron Howard.)
The 55 used in the movie, and driven by Harrison Ford was also the same car later used in Two Lane Blacktop as most of you know.
Suzanne Sommers was gorgeous in that movie...Makenzie Phillips not so much.
The "main" Pharaoh was Jerry Reed, later known as "The Snowman" in the Bandit movies.
In my opinion, it's the best Lucas film ever.