I fitted a set of Ultras, which you can find on Ebay, and Amazon on occasion. They are 60w rated (as per the cars rating) and much whiter than the OEM bulbs. I stumbled upon this brand some years back when I spent way too much money trying all the best bulbs on my Zoe to little effect.
But fitting xenon lights to a car not type approved for them should lead to it failing inspection, and bring you a fine if stopped in a control?
Atleast over here it's not legal to mount xenon bulbs in halogen headlights.
Xenon have quite a different specification than other bulbs have.
Light type: HB3(9005). Light Color: 6500K White. 2x LED headlight bulbs. LED Quantity: 3/2PCSLED/Each Bulb. Imported COB LEDs make high brightness lighting. Waterproof, shockproof and long lifespan up to 100,000hrs.