Jacking a 2010 Mazda 6 at the rear

[TheArchitect]

Hi Guys

Cannot seem to see any conclusive on lifting this car other than with the scissor jack on the cills.

Is this protrusion intended for jack the car up? I tried on the beam (see black mark) but couldn't then get the car high enough to remove the wheels! the front had a nice central jack point but wasnt sure if the back was ok???

Mazda 6 by rbaldry86, on Flickr

Mazda 6 by rbaldry86, on Flickr

[PaulKemp]

Block of wood under the central beam
Or any Suspension mounting point
As soon as you put a little pressure on you can feel if it will take the load or bend