When I first got it, the paintwork wasn't the best and in need of a good correction and polishing and sealing, so after getting a few mechanical bits done for peace of mind, I had it fully detailed as well as the under bonnet and interior and leather cleaned and treated.
Some mid way and before and after shots.
Beading nicely now
Then got the rear windows tinted to finish it off.
Sorry, I've no idea what was used to clean the engine bay. I took it to a mate of a mate who does valeting and detailing to give it a proper going over so I could keep on top of it once it was done properly.