In honor of Earth Day last week, the team over at Kelly Blue Book sat down to generate its annual list of the greenest cars available on the U.S. market. The list goes beyond just fuel efficiency, as the editors selected vehicles from a cross section of the overall vehicle market. Thus, the Chevrolet Silverado hybrid appears on the list along with the easy choices like the Toyota Prius and Honda Insight. In total, only six of the ten vehicles are hybrids. Two normally aspirated small cars, the Honda Fit and MINI Cooper, made the list based on highly efficient gas engines. Two German cars made the list with diesel engines, the Volkswagen Jetta TDI and the BMW 335d. Ford also made the list with both of its hybrid models, the Escape CUV and Fusion sedan.

Here, presented in order of combined EPA-estimated fuel economy, are Kelley Blue Book’s Top 10 Green Cars for 2009:

1. 2010 Toyota Prius

2. 2010 Honda Insight

3. 2010 Ford Fusion Hybrid

4. 2009 VW Jetta SportWagen TDI

5. 2009 MINI Cooper

6. 2009 Ford Escape Hybrid

7. 2009 Honda Fit

8. 2009 BMW 335d

9. 2009 Toyota Highlander Hybrid

10. 2009 Chevrolet Silverado Hybrid