So m2 full upgraded is not a mk7 ( to be upgraded). WIll I loose me crystals?? ( for upgrades I already have done?

really great advantage?? I cant see what that is. please help me out. Achievements have gone so start all over again form zero, MK7 in the garage is an mk6 in the profile. With the rank of mayor general ( 2 stars) I can upgrade my mk7 shaft??? My rank does not allow old m3 ranking up.SO why mk7 is that possible?? Fix all the bugs before the release or didn't u notice any off them

So this update grade is actually the former tanki from 5 years ago with no rank limits to gain m3 equipment( now mk7), Then u could buy m3 freeze an d shaft at mayor general rank and smoky twins when reaching rank of marshall? so this is What?? Not new, only in extra payment of crystals, I think.

so this is finally an overdrive battle form....haha