I knew that would get your attention.

I've figured out the Lexus game. :-) (I'll bet someone's already done this too.)
Look at all the model designations:
GS LS IS RX SC ES LX.
Letters used: GLIRSE (first position), SXC (second position)
De-scramble all letters and you get: SEX-C GIRLS

Those Japanese are tricky. I wonder what the next model designation is going to be, heh, heh? :-)

I must have too much time on my hands. Didn't think so before, but that must be the case....