Not a fan of Autoglym - used it in the past and to be fair, it doesn't have a patch on the Meguiar's products for price comparisson. Clay bar and detailer to clean properly, Stage 1 paint cleaner, Stage 2 polish and Stage 3 carnuba or the NXT Wax. Wash with Soft wash gel or Gold Class wash so as not to sptrip the work you've done!!!
That's an extreme clean mind! After that you're into the realms of orbital polishers and the like - check out
www.polishedbliss.co.uk for a fantastic set of products and a really helpful guy!
I've used Klasse all in one polish and Optimum car wax on my new ALtea - easy to apply as time is premium. Well happy with the results on platinum grey.