Help the American Cancer Society raise $500,000! Until the end of October, Chevrolet will donate $5 for every qualifying Twitter or Instagram post using #IDriveFor (up to a newly increased $500,000!) to American Cancer Society as part of their new recently launched #IDriveFor campaign. In addition, people can visit http://www.chevy.com/makingstrides to type in the name of a loved one who has been touched by breast cancer to burn some digital rubber. This feature will spell the name of the individual in tire tread markings and encourage sharing on Instagram and Twitter for ACS to receive the $5 donation.