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I use the original jack ,that came with my car on my beetle.At first it was scary because it wouldn't give when it was spose to.But now that i oiled it up a bit.
Its a good jack.The only thing is that you have to take a block of wood with you in case you get a flat tire on the side of the road ,so it doesn't sink in sand.But you have to do that with most bottle jack's too,so no biggy.

CB jack on right, Beetle jack on left.