Thanks for the link. It looks exactly the same as the stuff I have, the only thing that looks different is the name. The colour, bottle and instruction layout is identical. I am using it in my Karcher washer, with the adjustable pressure mixing lance. It does create a foam, but nothing like the one in the pic. I have just noticed this note on the webpage for 'ultimate snow foam'.
NOTE: Snow Foam is a pre-wash cleaner designed to be used in conjunction with normal shampoos. The amount of foam produced will be dependent upon the dilution ratio, water pressure and the application method.
Perhaps I should use it as a pre wash, before going over it again with my mitt. It would definately loosen dirt and take more away from the car before handwashing it.