Thanks to a variety of CO2 emission-reducing steps (see links below), the fleet of 18,500 rental cars operated by Avis around the world has reduced CO2 emissions by four percent overall between 2005 and 2007. The average per vehicle is now 157g/km per car, a number Avis wants to make even lower in the future.
Avis Rent A Car is continuing its green expansion in Europe with the addition this month of VW Tourans that run on natural gas to its fleet in 15 German cities. And over in Portugal, Avis' uses 50 hybrids and has reduced CO2 emissions by 50 tons (I'm guessing this is compared to 2004 levels, since the hybrids were introduced in 2005, but I'm not certain). In Scandinavia, Avis is all about ethanol (and hybrids), with "over 400 ethanol-powered Saab 9-5 BioPower cars, 75 Ford Flexi-fuel and 20 Toyo