Designated Drivers Napa Valley is your source for the best wine tours of the Napa and Sonoma Valley for the past 5 years. Our Napa wine tasting drivers are the best in drivers in Sonoma Napa. We are the drivers in Napa will handle all your requirements, from having a personal concierge through our DD+ service to coordinating vineyard picnic lunches and winery guest house stays. We offer private car service in Napa and Sonoma.