Forbes has compiled a list of the top 12 most environmentally friendly vehicles for 2007 - and the greatest news for people interested in purchasing hybrid cars or vehicles is that the cost for your purchase is dropping.

Of the vehicles who made the list - all clocked in under $35,000. The average price was $20,000 (which is down more than $1000 from the previous year) Frugal buyers can purchase a low-emission vehicle for under $13,000.

Not surprisingly the Toyota Prius and the Honda Civic Hybrid tied for first place with perfect 10 scores for greenhouse emissions from the United States Environmental Protection Agency. That’s fantastic considering your average SUV is likely to take out a score of zero (they don’t give zeroes)

The cost-price is great news for people interested in hybrid vehicles as it reflects a growing downward trend. With price seen as one of the biggest barriers against people making the move - it can only get better.