^ I got just the liquid clay shown here as an individual item. It is actually liquid clay. It came with a sponge that you apply it with... no bar. While being applied, you can feel a lot of friction while it works, and there is no scratching. Easily gets out my exhaust stains where soap/water can't.

Turtle Wax - ICE Clay Kit

__________________
'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr