There were three grades. LS 460, LS 460 SE, and LS 460 SE-L.
The SE adds ML audio system, power boot lid, rear audio controls, rear cool box, air-con and powered rear seats, powered rear sunshades, and sunroof.
The SE-L has everything the SE has plus better quality leather, parking assist, safety pack, 19" wheels, and a keycard.
What is odd is that nearly all the additional features could be added as options, so you can have the situation where a 460 is better spec'd compared to a 460 SE.