Mileage: 36 Hwy, 24 City (miles per gasoline gallon equivalent)
The Civic GX runs on clean-burning natural gas, a fact that helped it earn the top spot among 2010 model year vehicles in the American Council for an Energy Efficient Economy's annual "Greenest Cars" list.
For many business travelers, commuting through airports and enduring flights is the worst part of any trip. Thankfully, these seven gadgets help make life on the road -- and in the air -- much easier. More