Is this what you were asking about and how confusing what the dealer told you?
Its easier to see in pictures what the difference is between them.
Go through other dealer images and you'll see the different options.


Code - Description - Price
Summary

5MK - Interior Carbon Package II - $8,950
Luxury trim carbon fiber look on shift lever skirt, carbon fiber on center floor console, carbon fiber on doors and carbon fiber on dashboard; Additional carbon in various locations; Excludes: [5MQ] Interior Leather Pkg I And [5MR] Interior Leather Pkg II

5MQ - Interior Leather Pkg I - $495
Luxury trim leather on shift lever skirt, leather on doors and leather on dashboard; Excludes: [5MR] Interior Leather Pkg II And [5MK] Interior Carbon Package II

5MR - Interior Leather Pkg II - $4,110
Luxury trim leather on shift lever skirt, leather on doors and leather on dashboard; Additional leather in various locations; Excludes: [5MQ] Interior Leather Pkg I And [5MK] Interior Carbon Package II

7TD - Interior Carbon Package I (Small) - $4,150
Luxury trim carbon fiber look on shift lever skirt, carbon fiber on center floor console, carbon fiber on doors and carbon fiber on dashboard