theres a simple answer fo the CAI, there are no aftermarket parts for this car in UK, i ordered it from a mazda dealer in California.
If we want anything mazdaspeed/spoon/mugen/toms we have to import it, only Japanese parts readily available are for evos and scoobys, it works out a lot cheaper than buying parts in this country mostly anyway, even after $50 -$100 delivery and customs fees
The tail lights have a fog in them yes, in UK on the right and all other countries that drive on the wrong side of the road, on the left light.
I painted my calipers myself using hammerite high strength iron fence paint, the colour match is almost perfect.
We in UK arent metric, thats the EU, they tried to make UK metric so we are kind of both, they made it illegal to display things in imperial but people still did it so a couple of months ago they gave up and said UK can keep its miles and lbs and ozs.
But mostly our roads are in miles and our food is in kilos and grams and cars are weighed in metric tons.
Most people under the age of 30 in UK can work out miles, yards, feet and inches and cm, metres and kilometres cos of the messup in government we had to be taught both as they didnt know what system would be used in future.
The middle headrest slots into holes the same as the 2 side seats in the rear.