rusEFI: Open-source homebuilt fuel-injection set to rival Megasquirt

Electronic fuel-delivery and ignition controls have given us a new golden age of engine efficiency and performance. Most of us would never go back to the dark ages—say, before 1990—when you could still buy new vehicles with carburetors and clunky distributors. From the point of view of those of us who like to modify our cars, however, the black-box nature of engine-control computers limits our options for making changes to how our fuel-delivery and ignition systems function.

Spied: Porsche 911 GT3 RS

The mild redesign of Porsche's 911 range will get to the ultra-high-performance GT3 RS model, based on these spy shots. This prototype was nabbed making a cross-country U.S. dash.

GM preps for new engines, 8-speed transmission

General Motors is spending $332 million to upgrade powertrain plants in three states to build a new eight-speed automatic transmission, a new V6 and a new family of small-displacement gasoline engines. The plants are in Indiana, Michigan and Ohio. GM is also adding $46 million to an earlier $600 million program to upgrade powertrain plants in Saginaw and Romulus, Mich.