William Sawalich will be a full-time driver during the 2025 NASCAR Xfinity Series season, with Joe Gibbs Racing announcing Monday the 18-year-old is set to be behind the wheel of the team's No. 18 Toyota.

William Sawalich will make his rookie campaign debut with Joe Gibbs Racing in the No. 18 Toyota for the 2025 Xfinity Series season.

After a dominant season in the ARCA ranks, William Sawalich is moving up to a full-time NASCAR Xfinity Series ride for 2025. Sawalich remains in the Joe Gibbs Racing pipeline and will pilot the No. 18 car next year.

William Sawalich, an 18-year-old phenom racer, will move to the NASCAR Xfinity Series full-time in 2025 as he'll drive the No. 18 Joe Gibbs Racing Toyota GR Supra.

Joe Gibbs Racing announced that William Sawalich has been promoted from the teams' ARCA squad to the Xfinity Series team for the 2025 season. Salawich has won the 2023 and 2024 ARCA Menards Series East championships for Joe Gibbs Racing and will make his Xfinity Series debut on Saturday at Homestead-Miami Speedway.

Joe Gibbs Racing has almost finalized its 2025 NASCAR Xfinity Series driver lineup. On Monday afternoon, Joe Gibbs Racing announced that William Sawalich will drive the No. 18 Xfinity car full-time starting in 2025.

The 18-year-old claims win after win as he climbs the ranks William Sawalich has run 14 ARCA Menards Series races in 2024. He went to victory lane 9 times. Additionally, he picked up 3 ARCA Menards Series East wins along with 2 more ARCA Menards Series West wins.