New Take on Piston Engine by Audi

Interesting concept, variable compression...

http://www.foxnews.com/leisure/2014/...ntcmp=trending

NOTHING is ever new

http://www.runyard.org/jr/CFR/octane1.html
https://www.asme.org/getmedia/ffedc3...gine-1928.aspx


roller cams ? done in the 20's

ford's truck with automatic aero shutters on the front ? look at any classic car out of the '30s

coil on plugs ? look at the original igniter, before spark plugs,

lots more examples

Those rockers have to be under one heck of a bending load.