Its not the automobile companys that are responseble for the shitty gas mileage that american cars get,its the driver/buyers!!!
Americans DEMAND large SUV's,Trucks,Cars as their everyday transportation...Case in Point...

1.Woman,age 29,Two children, ages 9 and 12. And what does she drive as her everyday transpo...A 2004 Ford Expedition SUV...12 city/15 hiway Mpg

2.Male, age 24, Single, Everyday Transpo... 2002 Chevy 2500 4x4 One Ton Silverado Pickup...11 city/14 hiway Mpg

3. Male,age 47 Married, Everyday Transpo...2004 Chevy Corvette C6-Z01...13 city/17 hiway Mpg

Woman,age 61, Married,Grown Children,Everyday Transpo,,,1999 Cadillac Coupe Deville 4-Door,Northstar Modular V-8...Mpg 14 city/ 19 Hiway mpg

See the pattern here? The Automobile Companys are a consumer driven business,they sell what their costomers want to buy,nothing more. If we are to fix the "Gas Guzzler" problem in the U.S. then we have to change OUR driving habits and styles...Plain and Simple!

P.S. I'm a 48 Y.O. Male, Girlfriend,No Children, and what do I Drive? A 1986 Toyota Corolla...28 city/37 Hiway Mpg!!!! So I know of what I speak!!