Here is a look at the interior of the Toyota and Lexus version to give you an idea of what they did to make the interiors more up market for the Lexus models.

sorry for the large pics

LC200 interior
















Lexus LX 570

They have done a much better job differentiating the two compared to the past. The current LX interior is super plush and very well done.

True, the older versions were practically identical.

Both are pretty nice. Was driving a 13 LX yesterday. Nice little refinements here and there over it's 12 predecessor (mostly trim pieces, navigation, resolution, graphics, grill etc..)

LX is much more impressive... LC has some cheap bits, probably done on purpose to differentiate with LX.