Dodge Charger vs. Chrysler 300

I recently had the fortuitous opportunity to drive a 2010 Dodge Charger as a rental, when I was down in Florida last month. I was tremendously impressed with how the Dodge Charger handled and drove - and the acceleration was pretty fun also . . . . I was just wondering, does anyone know whether the Chrysler 300 sits on the same chassis/frame as the Dodge Charger? The two vehicles appear pretty similar in size and other visual characteristics. Since I've never driven a Chrysler 300, I don't know for sure - plus I'm pretty sure my wife will never let me buy a Dodge Charger anyway. Am I right in this assumption? Mostly, I was wondering if the Chrysler 300 might be equivalent to the Dodge Charger, in terms handling, etc. , and since that vehicle might appear on my wife's "okay to buy list"