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See them all: http://disney.go.com/cars/?cmp=dmov_dpic_car_2_emc_020711b_sec_characters#/characters/
for the trailer: http://choosingscars.blogspot.com/2010/11/cars-2-in-theaters-next-summer.html
Also see: http://fireballtim.com/blog/2011/01/11/cars-2-reveals-character-shots/