WHY STOP AT 54.5 MPG????? I mean, why not make it a thousand MPG? If the mandate gets it done, the President should just mandate that cars run on air. Not Practical you say? If you believe 54.5 is practical...you are just as gullible as he is.

Fuel economy deal pushes average to 54.5 mpg

Automakers and the White House are said to be close to a deal that will set the average fuel efficiency for cars and light trucks through 2025. Read this blog post by Martin LaMonica on Green Tech.