It's a shame we still have to wait for the new M3/M4. Here is the new Corvette. There are multiple videos. The reveal is the last one on the page. Reveal starts at about minute 21.
It's bigger, but lighter. Apparently more CF in the body panels. Rev matching sounds interesting. Hope it works better than the Nissan version.
http://www.chevrolet.com/one13thirteen.html