Pretty impressed with the insane technology that went into my engine. I thought the VQ37 was high-tech!
http://www.mo toiq.com/MagazineArticles/ID/2105/131-Compression-and-40-mpg-on-87-Octane-fuel-Introducing-Mazdas-Skyactiv-Technology.aspx
ETA: blocked for some reason, just copy/paste the link and take the space out after the "www.mo"