To me, the pinnacle of auto manufacturer collaborations is still the AMVOX line. Something exceptional has to happen in order to supercede that as far as I'm concerned....
to have a full ceramic haute horlogerie watch, which you can use at home care free while even washing dishes or playing with the kids without worrying about scratching it. It is probably a light watch too, plus there is no strap, its bracelet so no sweati...