1: What is the major difference between the Black Standard Leather Nappa (Sport) and the Black Heritage Leather (Luxury) choice? Feel, or just the "extended" on the dash, etc. And is there an opinion on Bruyere vs. Burr Walnut wood? I see you can get the Bruyere as an option on the Sport (vs the Aluminum). 2: Is the PDC worth it, given the look of the dots on the fenders? 3: Is the M Audio worth the space you give up in the trunk? Thanks in advance