I am the owner of a 2006 Z4 3.0si roadster and am trying to trace some of my cars options, etc as I am not the original owner. Just got this car in August 2024, 89,000 miles, clean history, just needed a little cosmetic renewal. under the hood the engine compartment is beautiful as well. Was Gold Valve Cover and trim and Gold support struts something standard or was it an option/add-on. It also has black wheels from BMW but I dont see that in any of the literature as an option. The aluminum door sills have M-Performance Logo but there is no other indication that I can find on the car regarding that. Anny input is appreciated.... also wish I knew how many of these 3.0si roadsters were made in 2006. Thanks for any info you may have.