Leftover Vanity Plates

As usual, on a Lexus. I GGK.  So it's not enough he announces he's GGK, he wants everyone to know it's him.

On another Lexus:  ABC   1.  Okay, pretty basic.

KMBA.  Really?  You've got plenty of space for that I.

ACURA 1.  I never get the plates announcing the car type. It's already written on the car, why pay for an extra reminder?

ARRRMTY.  Clearly a pirate.

FIRBOLT.  I assume it's firebolt, or maybe the guy just likes trees.

SUNPAC.  Could mean a lot of things.  Likes the sunny Pacific?