There appears to be a growing trend amongst rental car companies towards hybrids, or so says CNN. The growth is definitely slow and cautious, "At the end of the day, it's the consumer that drives rental fleeting," said Neil Abrams, president of Abrams Consulting Group Inc., "Rental car companies can buy a lot of cars their customers don't want to drive, and they'll be sitting in a lot and gathering dust." According to the article, Enterprise Rent-A-Car has opened four new "green branches" in Atlanta where about 60 percent of the vehicles at the branch will be hybrids or other fuel-efficient vehicles. Enterprise has built its hybrid fleet to 4,000 vehicles in its total fleet of 1.1 million, while Hertz Global Holdings Inc. said it's adding 3, 500 Toyota Prius this year, and Avis Budget Group Inc. says it now offers 2,500 hybrid vehicles in it's total fleet of 1.8 million. While it is a drop in the bucket, the trend is positive, and exposes drivers to the gas sipping vehicles.