My gently used Mini came with halogen lights. I've had HID lights on my cars since the late'90s. Tonight, I finally installed the OE Mini retrofit HID lights that I got a while ago. Simple plug & play. Four bolts and four adjusters for aligning each housing with the cutouts in the bonnet. I have to get the car coded for the lights. Code for HID and the pinout. My tech guy at work says he can do it. We will see. Adjustment should be easy via the standard two Allen head adjusters. There are protective caps on the horizontal adjusters that can't be removed once the light is installed. I added a little knob for easy removal. I'll take some pictures once the lights are set up.