. . . . . . . . . "Celebrities and athletes including Jessica Alba, Taylor Lautner, Hilary Swank, Rob Lowe, Kate Walsh, Russell Simmons, Kellan Lutz, Amanda Bynes, Osi Umenyiora (New York Giants), and Chad Henne (Miami Dolphins) gathered for the culmination of The Audi Efficiency Challenge, a program where Audi showcased the mileage and performance of the Audi Q7 TDI clean diesel vehicles with a drive for charity fr" . . . . . .