SAM POSEY
is 72 years old and as colorful as ever. As if to prove it, when we catch up with the race-car driver, Formula 1 commentator, and author of “The Mudge Pond Express,” one of the 1970s most-gripping racing autobiographies, he’s padding around his studio in Sharon, Connecticut, with an easel and a multihued array of oil paints at the ready. At the opposite end of the highceiling barn-cum-studio—designed, like everything else on the property, by Posey, who did the landscaping as well—we see where his wife, artist Ellen Griesedieck, has been assembling the American Mural Project, a 3D collaboration of artists from around the country she’s directing that honors the American worker. When unveiled later this year, expect it to be the world’s largest piece of interactive indoor…