Samuel L. Smith is an American professional stock car racing driver. He competes full-time in the NASCAR Xfinity Series, driving the No. 8 Chevrolet Camaro for JR Motorsports, and part-time in the NASCAR Craftsman Truck Series, driving the No. 7 Chevrolet Silverado for Spire Motorsports.

JR Motorsports is an American professional stock car racing team that currently competes in the NASCAR Xfinity Series, eNASCAR Coca-Cola iRacing Series, CARS Tour, and occasionally in the NASCAR Advance Auto Parts Weekly Series. The team is based in Mooresville, North Carolina, co-owned by former NASCAR Cup Series driver Dale Earnhardt Jr., his sister Kelley Earnhardt Miller, Kelley’s husband and former racer L.W. Miller, and the owner of his former Cup Series team, Rick Hendrick. As of 2023, the team fields four full-time entries in the Xfinity Series: the No. 1 Chevrolet Camaro SS full-time for Sam Mayer, the No. 7 Camaro full-time for Justin Allgaier, the No. 8 Camaro full-time for Sammy Smith, and the No. 9 Camaro full-time for Brandon Jones. The team also fields the No. 88 Camaro part-time for Bubba Pollard, Carson Kvapil, Connor Mosack, Connor Zilisch, and team owner Dale Earnhardt Jr.