That's the clay you're thinking of dragonfly. Never tried the Autobalm must get a sample pot actually 
Used it today, not too sure, you need to apply it in very small sections & wipe off straight away, it dries fast & if you miss any bits they are a pain to get off

So much so, I washed the car again & waxed it with AG HD.
Only reason I bought the Auto Balm was because the shop recommended it cos they had no collinite in stock.......
