Posted: May 29, 2008 05:14 p.m.
Saver: The only SUV to make our list, the Mercedes-Benz GL320 CDI owes its fuel-sipping nature to the turbodiesel V6 engine under the hood.
For more surprising gas guzzlers and savers, read our feature article.
Buying a new car should always be this hassle-free. Learn more »
We've compiled a list of the best car deals available in the U.S. for this month.