I'm not sure I could quilt while driving - not enough space. I will also preface it w/ I generally make bed size quilts, and there's a lot of bulk that comes along w/ them. I'd probably have better luck piecing a quilt while driving...Just thinking out loud here.
I would agree w/ needles, thread nips/scissors, needle threader, thimbles. I use YLI glazed cotton thread (my absolute favorite thread). Gutterman glazed cotton is my 2nd favorite.
I don't spray baste - I thread baste using the sharon schamber method.