I recently purchased a newish type of wax, (as my current stock is getting low), which I was going to use on my Cat, but after using it on the cat, have now decided to use it on Gruple, as very impressed with the quality of it. Only problem that I found is that it needs to go onto clean paintwork, so set about machine polishing Gruple and have so far done, bonnet, roof, and rear end, just got the doors and front bumper to do, but the beading quality and shine that it gives the car is second to none, much better than a lot of more expensive waxes.
This is the stuff I have used, and so far would highly recommended.
https://www.nipponshine.com/wax/fuss...dark-200g-1052
Stu