OEM HID Conversion, Can it be done?

Within days of buying my coupe I fitted a chinese 55w 6000k HID conversion which was great because now I can avoid the foliage, juicy wildlife and other motorists.
Although have you ever watched the headlights in the oncoming stream of traffic on the M1 and you can see the OEM HID lights look so much better against some of the cheap HID Conversions from hing yang fu international lighting corporation firm (especially the kits fitted to cars with just a reflector not like the coupe with the projector casing thingy)

Also i would like the ability to be able to flash my lights and the bulbs to ignite instantly (like high end mercs etc) rather than taking 20 seconds to come to full brightness

What I am wondering is will any of the other kit fit thats designed for the other fiat models that you can get HID lights as a factory option e.g.: Stilo and the 500c

I have done some googleing and have found a few websites that will sell you the kit its just a matter of can it be made to fit? especially if they use the same projector technology throughout the fiat range?

Any advice or pointers would be brilliant!

2007 Bravo was available with HID, though I've never seen one.

The main difference will be in the quality of the electronics; specifically monitoring to see if the arc's gone out and restarting automatically, and perhaps a higher start voltage.

binned my HID's as they took to long to work

Digital ballasts fire up quicker apparently.

Thats the main reason I didn't bother getting any for my main beams because by the time they have fired up properly you dont need them anymore.
I am just trying to work out if any OEM Projector assemblies would fit into the fiat coupe headlight, so I could use high quality parts and have instant light,
Me thinks I am going to have to buy some beaten up headlights to have a good look inside. then find somewhere that stocks new projector assemblies so I can just see what will fit (if any)

Bi-xenons might be the answer