Ive used some of the Autoglym range. what I have used has been very impressive.
The Extra Gloss Protection is a polymer, kind of like klasse SG in the way it is the finishing sealant for a two part system. Unlike most polymer sealants it leaves a very deep finsh, while also having a "p21s" like shine. I was very impressed.
The Glass Polish is amazing when used with a rotary on a slow speed. I used it to remove clear coat overspray from a panel shops clients cars windows after it was resprayed. Using with a PC also gets good results.
Vinyl and Rubber care is also worth a mention. It performs and finishes like 303 with a fresh orange smell.
Hope it helps