HID (high intensity discharge) headlight lamps are xenon lamps. They are sold to tuners who use them to blind oncoming drivers. HIDs are favored by the kind of person who enjoys playing boom-boxes at full blast so as to annoy fellow motorists.
The new GM is too attuned to consumer sensibilities to offer HIDs as an option.
If you go HID please do it the right way with projectors. If there isn't extremely bright glare, the heat from the bulbs will in time damage your OEM housings.
You can find everything you will need for a complete set up here: What you need! Headlamp Projector & HID Retrofit
Most cars that have them factory like Bmw, Audi, Mercedes, etc, have them in projector housings that can control where the beam is sent. Most other stock housings are not projector. They just take the extra light from the HID and reflect it everywhere. You will get a pretty good beam out of them, but no where as controlled.
Dont get me wrong I put HIDs in my Sonic lol