PC 2011

Still waiting to hear of any changes/improvements to the 2011.  Apparently the finished 2011's have been sold, but pictures of changes could be published.  For those that are interested there is a way to improve the performance of your V-10 engine.  As some have noted it stays in high RPM until you help it out.  Well, a Gear Vendors aux. transmission allows you to keep your engine in its desired RPM/horsepower range.  It essentially doubles your gears. 
    Bob

I have observed between some adjacent model years, the only differences is......nothing noticable at all.  They sometimes change what is offered as standard equipment, or changes in the supplier of certian options.

As far as the chassis is concerned, that is best researched on Ford's website.  But I think there is nearly nothing different between the 2009 and 2010.  I read the 2011 or 2012 chassis might have a more fuel efficient engine, at the expense of horse power.