erm.. i would have uses the kiwi liquid polish (with the foam applicator on top).... 
The stuff with the foam applicator is not the same. It's liquid and doesn't last as long because you can't really rub it in properly.
No, it's wax based so far better. I think you'd be pushed to get
leather polish to rub into plastic!!
The liquid stuff is the best, you get a flat, long lasting finish unlike the pics on the previous page using the little tins.