Dear V-8 Buick caregivers who are fussy about the rubber that meets the road, If you have your heart set on some Diamondback tires, there is some extra incentive to make that purchase: $50 off. The announcement turns out to be just an image: The discount code is: JULYFIFTY and it expires on July 30th. Here is the URL to diamondback tires for convenience: https://dbtires.com/ FYI, . . . . Edouard