2011 Porsche Cayenne S Hybrid Gets Federal Tax Credit, But Others Expire
 

http://media.il.edmunds-media.com/po...120710_196.jpg Consumers who buy a 2011 Cayenne S Hybrid before December 31 may be eligible for a tax credit of up to $1,800. But other hybrid and diesel tax credits are set to expire by the end of the year.

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