I've decided on a 2013 Limited, but can't make up my mind on the 301A or 302A option packages. I know the park assist will rarely be used if at all. Are the lane keep-departure and adaptive cruise with collision warning really worth the extra expense? Do any of you use it? Also, What does "brake support" actually mean? I know the Infinities it apply the brake for you. Does this? Thanks for the Help!