PHOENIX - The Renewable Fuels Association's 16th annual National Ethanol Conference, scheduled for Feb. 20-22 in Phoenix, will offer test drives of General Motors' new cars and crossovers capable of running on E85 fuel. 

The GM flex-fuel vehicles offered for test drives will include the model-year 2011 Buick Regal and GMC Terrain, RFA said. General Motors offers 19 flex-fuel cars and trucks. The test drives will take place on Monday, Feb. 21.

This year's conference, "Building Bridges to a More Sustainable Future," will be held at the JW Marriott Desert Ridge Resort & Spa in Phoenix, Ariz. For more information about the conference, visit