It’s not quite the same type of hybrid drive-train you’d see in street vehicles, but in an exciting announcement, Max Mosely of F1 has announced that all cars will become hybrid by 2013, along with other changes to the vehicles.
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Formula 1 Racing to Go Hybrid from 2009-2013

MIT Study Shows Grid Must Be Cleaned Up For Electric Vehicles to Reduce GHGs
You might've guessed, but the problem is bigger than just putting oil in our cars. Moving towards electric propulsion is a big part of the solution though.

Without Clean Electricity, Plug-In Vehicles Aren’t So Hot
Carnegie Mellon just put out a new study discussing the GHG impact of conventional cars, hybrids, and plug-ins. The most interesting conclusion is that unless we clean up the grid, PHEVs aren't really worth that much. Still beat the pants of standard cars though!

Is Ethanol Production Fueling the Size of the Dead Zone?
Every year a New Jersey-size patch of the Gulf of Mexico where no sea life can be sustained is created by nitrogen-based fertilizer runoff. This runoff comes largely from corn production, which is now tied heavily to the production of ethanol in areas of the Midwest where the runoff comes from. So what can we do about it?

Aerocivic @ Ecomodder - how to drop your Cd from 0.34 to 0.17
An extreme ecomodder gets great mileage by modifying his car's aerodynamics.