The Subway in Knoxville is moving to a new, larger building, which is set to open by August 26th. Sources tell KNIA/KRLS News the new building is being built south on highway 14. The National Sprint Car Hall of Fame and Museum leases the current Subway property, and the Museum says they are looking at different possibilities of how to use the property next year. << Subway management says the new building will have three times the seating area than in the current location.