Just my 2cents.

Well, all the dealerships takes their options seriously.

For instance, Mercedes don't have trim levels.

they have P1, P2, P3 Packages systems in the States.

(higher the number, the more luxurious options)

If I remember correctly, Porsches does not offer trim level, or a package, but a crap ton of customizability.

From what I heard, Dealerships will stock the most popular color and the trim level, in their located region. Color preferrence and Trim options varies on the dealership's location. (the poor neighborhood and rich neighborhood) (for a obivious reaseon.)