Audi cars in North America are all optioned like this. They offer two standard packages. The low end S3 package offers leather, pano roof, powered and heated seats, sat/nav etc. The high end package is standard plus B&O, virtual cockpit, plus some other goodies, which can be optioned to the standard package, but you can not option B&O or VC . They can keep the VC but I did want the B&O on my car but not at the upcharge price of 2,500 quid for the high end package with options I did not want.
Looks like the days are numbered in the UK for base car and then add all the options you want, which I really like. I can understand the logic for car manufacturers to not allow this, as it is much easier to produce two pretty loaded standard packages and add just a few customer options.