Featured in internal combustion engines

This Camaro has an engine so huge you can only drive it on the track
The Internal Combustion Engine Still Has Some Miles Left In It
Lasers Could Replace Spark Plugs, Making Engines More Efficient
Shockwave-Generating Wave Discs Could Replace Internal Combustion Engines
The Internal Combustion Engine Is Not Dead
Technological Breakthrough or Alchemy?
Step 6: Go H2
Taming Your Gas Guzzler
The Popular Science Automotive Buyer’s Guide
Obsession: Mr. Singh’s Search for the Holy Grail