Engineers at GM have made reccomendations that all cars should have gas mileage displays.
fuel efficiency
GM Engineers Say All Cars Should Have Gas Mileage Displays
6 Stupidly Simple Steps to Saving Billions of Gallons of Gas
OK...gas prices are getting out of hand, and carbon emissions have been out of hand for a long time. So let's kill two birds with...well...five stones. Sometimes, there are simpler ways. In fact, an absolutely tremendous amount of gasoline could be saved in America with some very simple measures. We break it all down and figure out how much gas can be saved with some stupidly simple techniques.

2009 Jetta BlueTDI Comes to US This Summer, Sports 60 MPG « Chemistry for a sustainable world
THe new 2009 Jetta TDI from VW will have a turbodiesel engine, will meet th etoghest US emissions standards and will get 60 MPG.
Video: General Motors Experts Offer Tips to Conserve Fuel
 While the price at the pump is not expected to ease anytime soon, experts at General Motors say there are ways drivers can ease the number of trips to the gas station. Adhering to the recommended speed limits is one way to conserve fuel says experts.
Modest Fuel Economy Increase Is Little Cause for Earth Day Revelry
Just because the new proposed rule on fuel economy is better than expected from the Bush administration, don’t start dancing in the streets just yet.
U.S. Fuel Economy Standards Boosted to 31.6 MPG by 2015 : Gas 2.0
The White House has outlined their plan to increase fuel efficiency standards to 35 MPG by 2020, a move that will save Americans an estimated $100 billion in fuel costs. The proposal gives a boost to the timeline by requiring the mileage of passenger vehicles to average 31.6 MPG by 2015. That’s up from today’s average of 25 MPG.

Hybrids are Still Hot
New hybrid vehicle registrations went up 38 percent in 2007 and are expected to keep growing this year!
With six DIY efficiency mods, Car & Driver improves a car's MPG by 25%
In response to the '73/'74 oil crisis, Car and Driver magazine tweaked a bone stock production car to make it more efficient. The results? 25% more highway MPG from their "Crisis Fighter Ford Pinto," using six relatively easy DIY modifications.

Learning How to Drive Green
Meet Wayne Gerdes:
Wayne is the most fuel-efficient driver in the world. Seriously. There's a competition and a trophy and everything.
Wayne drives a 2004 Honda Accord which, according to the US Department of Energy, gets 23 MPG city.
Read the rest at: http://www.bravenewleaf.com/environment/2008/01/learning-how-to.htmlÂ

Gasoline + Diesel Engine = 100MPG
Don't try this at home, but Transonic Combustion, has created a fuel injection system that will let diesel engines run on regular gasoline. The company's fuel injection system dramatically increases the internal compression in an engine, a standard 2.3-liter diesel engine that gets 50 miles per gallon can get 100 miles per gallon when retrofitted.
Video: Saturn Vue May Be First Plug-In Hybrid Available to Consumers
Saturn anticipates the production of its plug-in hybrid electric version Vue Green Line to begin as early as 2010, potentially making it the firstcommercially available vehicle of its kind. Saturn officials also say they expect the Vue plug-in hybrid to be the most fuel-efficient vehicle offered by a major automaker.
Video: Explorer America Concept Reveal at NAIAS
The Ford Explorer America concept showcases a new kind of utility for the vehicle customers have known and loved for years: even betterfuel efficiency.
Video: President Bush Signs H.R. 6, the Energy Independence and Security Act of 2007
Flanked by congressional Democrats and Republicans, Bush signs 2007 energy legislation at Department of Energy headquarters. The new law increases vehicle fuel economy standards, boosts biofuels and mandates better appliance and lighting efficiency among other provisions.

6 Perfectly Painless Ways to Save Gas this Thanksgiving
High gas prices got you down? It's actually easy to save some gas money, and reduce your carbon emissions. Why not do it over Thanksgiving, when the spirit of the holidays are in the air, and you have to get to Grandma's?

Chevrolet to take the lead on fuel solutions
This is a very interesting article outlining the steps that car companies are taking to increase the efficiency of there vehicle and setting industry standards for fuel efficiency.