Greg Biffle Diecast 16 Give Kids a Smile / 3M 2013 1/24th Nascar Diecast Collectible produced by Lionel NASCAR. Greg Biffle gave help deliver a message to children about health habits at Michigan International Speedway on June 16th. The Veterand Roush Fenway Racing driver has teamed up with the American Dental Association and the Give Kids a Smile campaign to share and important oral health messages nationwide! Piloting the #16 3M Give Kids a Smile Ford Fusion. This will not be a raced version but he won in this car at Michigan.