Depth perception takes the cake.
I've been hearing a bunch of anecdotal reports about the impact of features like brake energy recuperation and auto stop start. I think this is part of what will increasingly drive automakers toward 48 volt systems and different types of batteries including lithium ion.
Enginerdy: Why BMW’s N63 twin-turbo V8 eats batteries
When cars get complicated, weird things happen. In the search for thrift and power, BMW unwittingly made its N63 a battery killer.