Hi Viking,With the headlights switched on, it isn't as easy to compare the two types of lamp assemblies as it is when they are off, but by the area of the lens that is illuminated and the colour temperature of the light pretty much identical to the warmish white fogs, I'd say they were halogens as well. Xenons would be a noticeably colder, bluer temperature with a smaller area of lens lit by the projector. The dipped, outer beam Xenon unit is not fitted with a reflector, and is distinguished by the big lump of almost hemispherical shaped glass that is the lens, where the halogen unit has the lamp in full view in front of the old-school silvered reflector. What could guide you, assuming the car to be unmodified from the delivery specs, would be to check the page in the handbook that lists the vehicle options and equipment, the one with the VIN and engine number on it, where you will find printed dozens of 3 alphanumeric codes. Each decodes to a particular item. If it lists 8BF, the car left the factory with halogen headlights for driving on the left. If so, haggle the price down, because the difference in illumination between xenons and halogens isn't that huge unless you are blasting through the countryside at night at 120mph, which of course you can do on your motorways if the moon is right.oz.