Select: Hub caps, no automatic climate control, base velour seats
Deluxe: Alloy wheels, full auto climate control, classier velour seats (leather seats is optional with rain deflectors), sunroof, Xenon headlights (on facelifted AZE121) and that "tack on" Deluxe badge.

NZE121 is a model number, like 996.
GLi stands for 1500cc. Because NZE121 only have 1500cc, so even if its the Select version, its called GLi.
Deluxe and Select are trim model names created by Crown Motors.