Will it be possible to change some fixtures in different trim levels (eg. larger exhausts and a rear spoiler for an RS/M/AMG/Whatever model) in the future?
It is being planned
Yes!
Great. 
Will it be possible to change some fixtures in different trim levels (eg. larger exhausts and a rear spoiler for an RS/M/AMG/Whatever model) in the future?
It is being planned
Yes!
Great.