Went to see my parents over the weekend and managed to give the Box a nice clean.
Ran around the car with one bucket of cold water to get rid of surface grime
Then used Meguiars Gold class wash shampoo
Ran around it again with another bucket of cold water to get shampoo off
Dried the car
Did a quick skim over with some Meguiars clay on the wings and bonnet
Then applied Zymol Carbon Wax to the entire car
Took about 2 hours all in
Then spent the next 5 or so hours just staring at it