Ross Chastain is an American professional racing driver. He competes full-time in the NASCAR Cup Series, driving the No. 42 Chevrolet Camaro ZL1 1LE for Chip Ganassi Racing, part-time in the NASCAR Xfinity Series, driving the No. 07 Chevrolet Camaro for SS-Green Light Racing, and part-time in the NASCAR Camping World Truck Series, driving the No. 44 and 45 Chevrolet Silverado for Niece Motorsports.