Quote:
Originally Posted by icon2015
For BMW E89, E7X platforms, you can't upgrade the SZL's arms as you can do it in E6X. If you wish to have an SZL with all your previous options and cruise control, you have to buy an SZL with those options.
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I'm curious as to why? I don't think BMW would make so many hardware variants for the different combinations. It's inefficient. The conventional wisdom is make one module and allow for variants via software.
I'm not saying you're incorrect I'm saying I'd like to understand why BMW would do it that way.