end of 2015 was first LCI ( I had a sept 15 build car - reg dec 15, and this was first of the LCI's) another LCI in 2018 I believe. latter cars have updated idrive with carplay (17 onwards?)
As per previous post comp pack not a big deal IMO, front seats a little different, heavier and uglier 20 inch wheels. non comp suspension can be coded to comp as hardware the same after LCI. Spikey power delivery of either version (and the 30bhp or so extra from comp pack) is sorted easily by a remap, and both remap to same figures - just over 500bhp for stage 1. makes it less spikey, lots quicker and you can adjust pop/bang level on most maps.
CS is quite different however and supposedly even sharper.
I sold mine end of last year and now have a C63, which i prefer for some things but not for others. main points - C63 sounds way better and has a nicer interior, rides softer (which i prefer). M3 more focused, harsher ride, way better gearbox.
As per previous post comp pack not a big deal IMO, front seats a little different, heavier and uglier 20 inch wheels. non comp suspension can be coded to comp as hardware the same after LCI. Spikey power delivery of either version (and the 30bhp or so extra from comp pack) is sorted easily by a remap, and both remap to same figures - just over 500bhp for stage 1. makes it less spikey, lots quicker and you can adjust pop/bang level on most maps.
CS is quite different however and supposedly even sharper.
I sold mine end of last year and now have a C63, which i prefer for some things but not for others. main points - C63 sounds way better and has a nicer interior, rides softer (which i prefer). M3 more focused, harsher ride, way better gearbox.