From Carscoops (details and extensive gallery at the link)

Clearly the moratorium has been lifted.

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It's easy....they got their info from....ACURA! Go to the Acura web site and read ALL the Press Releases on every aspect of the new RDX. Multiple PR's covering everything about the RDX. I just read through them...not word for
word...too much, even to print. I'd use all my printer paper. It's ALL there...stuff we all never heard about or certainly didn't "talk about...or argue about" here....LOL!!!

Go to Acura.com and look up today's Press Releases. Multiple releases covering ALL aspects of the new RDX. Some stuff there we never thought about, or knew they put in to this new re-do of the RDX.

Everything...close...you wanted to know about the RDX. How much aluminum and where? Hmmm..it's there....acoustics in glass and body....this list is endless of "stuff" we didn't know about...or I'm sure
99% of us didn't.

It's amazing how much detail the engineering dept's went to when designing this all new RDX.