No I mean like the drive mode on the galaxy 3...when you are driving it will tell you who's texting you or calling you so you don't have to look at your phone...does a galaxy nexus have this feature?
No, any pure Google phone does not have that feature because it is not a part of AOSP (Android Open Source Project aka Android). That feature is an added application added in from Samsung's overlying software package.
+1Any phones/device dubbed "Nexus" by Google is going to be a pure Google phone. It just happened to be made my Samsung.