Greg Schneider (needs registering) on systems

Laptops are standard around Atlantic Motorsports, where Chamberlin works when he’s not studying at George Mason University. Today’s automobiles are packed with about a thousand times as much computing power as was in the Apollo moon landers, according to the Alliance of Automobile Manufacturers. Computer chips run more than 86 percent of the systems in an average vehicle, according to the alliance. Modifying them can ruin a car as quickly as juice it up, but if you know how, you can reprogram controls such as timing and air/fuel ratio to milk more power out of an engine.

More thinking in terms of systems.