Wondering if there any special material you can use either than soap and water for the top and the plastic rear window. Thanks

 

top- use car shampoo and a brush. after you dry it, use a clean rag to apply vinylex (spray on the rag away from the car). after applying, buff off any excess.
rear window, use plexus inside and out.
also, check out the wash and wax forum on this board for more top care ideas...
good luck!