Thankfully not too busy down at the boat launch. It was the best spot for photos
I spent quite a bit on 3M Venture Shield coating (which is on for these photos). This should not only make looking after the car easier (it protects against small dings and scrapes), but hoping it makes cleaning the car easier.
The caps under the headlights are the Xenon light washers. By law Xenon's need to have washing and auto levelling systems in Europe, Asia, Australia, New Zealand... actually practically everywhere except the US.
They're not on the US vehicle, because the US doesn't make it compulsory by law.
The reason most countries make it law are quite complex, but the basic version is that Xenon's don't work as well as standard headlights if the lens is obscured by dirt, and they're more affected by the weight of the vehicle because they're so directive. As a response to this, Europe's specifications enforced Xenon washing and auto levelling to ensure that the lit area was up to the standard. Most countries saw these specifications as completely understandable and have included them in their own standards. It is for example part of Australian standards.
The current US regulations were released quite a long time ago prior to HID Xenon's being introduced. Further to that, Xenon's fall within the US standards despite European findings.
The University of Michigan did some research into Xenon's, auto levelling and washing for US purposes and came up with findings that auto levelling is very important and washing is less important:
http://deepblue.lib.umich.edu/bitstream/2027.42/58733/1/100247.pdf
Usage wise, the washers are attached to the same washer bottle as the front and rear windscreen washers and will wash the lights once per each 5 wipes of the main windscreen (when washer is used).
Thanks for comment of tacho. It was just the iPhone. Put it there mainly to show low rpm of diesel compared to petrol.