The WTCC configuration at Sonoma Raceway represents the World Touring Car Championship specific layout used when the series visited California's wine country circuit, creating a variant distinct from NASCAR's Chute configuration and the full 12-turn road course. The WTCC layout optimized corner flow and runoff areas for touring car racing characteristics, where close door-to-door competition demanded specific safety considerations and overtaking zone optimization. This configuration served international touring car events requiring FIA-approved layout specifications.

Operating the WTCC configuration showcased Sonoma's adaptability to international championship requirements, with the layout meeting FIA standards for World Touring Car competition while maintaining the circuit's signature elevation changes and technical character. Northern California's climate creates ideal racing conditions across much of the season. The WTCC variant demonstrates modern circuit philosophy where facilities offer series-specific configurations matching particular championship requirements, allowing Sonoma to host diverse events from NASCAR to international touring cars by adjusting track layout to suit different racing disciplines.