Hey there, Judy, and welcome back to planDisney!
This is such a great question! The
Magic Key Pass page specifically mentions discounts on
standard parking. Specifically, excluding blockout dates, Passholders receive 25% off at the Toy Story Parking Area for Imagine and Enchant Keys; 50% off at the Mickey & Friends Parking Structure, Pixar Pals Parking Structure, and Toy Story Parking Area; and free parking at those same locations with the Inspire Key.
However, as I researched to answer your question, I didn't see anything specifically about preferred parking, so I
called a Cast Member at the Magic Key Pass line and she did confirm that Magic Key Pass parking discounts apply only for standard parking. If you choose preferred parking then the normal rates would apply.
I hope you're asking this question because you're a new Magic Key Passholder! There are so many fun benefits that come with Magic Keys - beyond the frequent visits to the parks. If you haven't already, I would recommend following @disneylandmagickey on Instagram for fun tips and opportunities just for Passholders.
Thank you again for your question, Judy! Feel free to come back and see us here at planDisney with any follow-up questions you think of. We'd love to help!
Have a Magical Day,
Greg