>>28455440 (OP)merc is the worst right now, imo. 100% chintz and flash, 0% quality, absolute worst usability. audi is 2nd worst/best, and bmw is the best of the 3. bmw still sucks compared to its older days, its still touch everything and huge ipad glued to the dash. but at least the build quality is good and the software kinda sorta works.
honestly, i'd advise staying away from the germans right now. they're in their "trying to do tech" phase, and it sucks ass harder than am aspiring teen starlet at an interview with a hollywood producer.
if you want tech, get a tesla. if you want quality, buy older used german. 2010 or so is the cutoff point for acceptable, but to get the really good stuff you have to even older.