That's kinda rhetoric, but its based on fact.
Safety equipment makes the cars heavier... in addition, we want navigation, in-headrest DVD screens, etc which also add weight, making the car less efficient.
The safest cars are also the heaviest... (leave SUVs out of it)
Which car would you rather be in an accident in, a prius/insight/smartcar or an Impala2009/Fusion/etc