Looking for info on the AR series engines

[JasonA]

Hey guys,

I just bought an '11 Camry with the 2AR-FE engine. I came from a Corolla with the 1ZZ-FE engine, and was pretty impressed with that engine, especially after reading some of the behind-the-scenes information on the development of that engine in an SAE paper (linked here).

Does such a document (or similar) exist on any of the AR series engines? I know of a few technologies it uses (such as an offset crankshaft, 3-stage ACIS, etc), but would really like to read more about it. If anyone knows of any further information available on this engine, I would appreciate being able to read about it. Even its Wikipedia page is rather sparse!

(I know, it's still a rather new engine.)

Thanks!