From BMWUSA:
"20-way power multi-contour seats include standard 10-way power seat functions, plus additional power adjustment functions for shoulder and thigh support, backrest width
and lumbar support (contour and position), plus two-way manual lateral adjustment for Comfort headrest"
I'm not sure what that means...
(edit: just noticed you are from Louisiana, X5FX. Are you from NOLA? (I'm very familiar with it)...if you are, I know how the streets are there!
)