I think there's always confusion between HID's, Xenon's and halogen lights.
As far as I know, HID's are just aftermarket things, some are awful, some are great. No Omega came from the factroy with HID's. They came with Xenon's. It depends what you want to do, fit Xenon headlights (i.e like the factroy put in) or aftermarket HID's? I guess if you want HID's from ebay etc etc, then no headlight washers and manual adjustment would be fine. If you want Xenon, like the faclift CDX's and Elite's you need headlight washers and levelling motors on the headlights. No car manufacturer I know of calls Xenon headlights HID's.
Sorry mate ... way off !!!!

Okies what are HIDS/Xenons/halogens etc etc etc...
On the omega over time there have been basically 3 types of lights. First 2 are FILAMENT lights .. ie .. bulbs, they were fittd to "normal" type headlights - those with reflectors - and also to "projector" headlights .. those with the round glass ball.
Filament lights produce light by a wire glowing white hot, the hotter it gets the more light it produces .... but the wire (filament) tends to burn out ... so they fill the glass with an inert gas ... either xenon or halogen to stop the oxidisation ... hence the names .. halogens and xenons .. its the GAS they are reffering to !!
HIDs are High Intensity Discharge lights ... there are no filaments in the bulbs .. the light is produced by striking an arc .. think welding arc or lightning .. its the electricity jumping the gap that produces the initial light ... this energy then causes a gas to "flouresce" ..think strip lights .. flourescent ??

.... the gas used is ... XENON ..
So we have xenon HIDs as well as xenon bulbs, and halogen bulbs ...
HIDs are ONLY fitted to "projector" lights and can easily be spotted by the big "high voltage" warnings on the lights .... the high voltage is needed to strike the arc.
so ... we can have
Halogen filled bulbs in a reflector light
xenon filled bulbs in a reflector light
halogen filled bulbs in a projector light
xenon filled bulbs in a projector light
xenon filled HID Lamp in a projector light
and all have been fitted to Omegas as standard.
HTH
ps .. my miggy has xenon HIDs fitted as standard ...
