Last week I was on vacation and got a Pontiac Vibe as a rental. I always like to pop the hood on any car I rent to poke around and look at how different engine compartments are set up, anyhow, this car had strut bar that caught my eye and has piqued my curiosity. As shown below, this bar is constructed with some kind of damper built into it. I pulled the dust boot off of the damper and it appears to have a good allowance for travel that by my thinking would negate any advantage that a strut tower bar would provide in the first place, however, I can't believe that an automaker would add this unit for no reason due to the cost involved. Does anyone know what the purpose of this damper is and if it may provide any advantage over a traditional strut tower bar?