Following his departure from the Jordan team, Anderson joined the Stewart Grand Prix team, designing the Stewart Ford SF3 for the 1999 Formula One season. This season would be the most successful season for Stewart Grand Prix, achieving four podium finishes, including a win at the 1999 European Grand Prix. The team secured 4th in the Constructors' Championship for that season. Anderson said of team owner Jackie Stewart that he was "the best person I've ever worked for in my life". After Ford bought the Stewart team and renamed it Jaguar Racing for the season, Anderson remained to design their 2000 Formula One car. The Jaguar Cosworth R1 scored two points finishes in the 2000 Formula One season, ending the season 9th in the Constructors' Championship. Anderson was then replaced at Jaguar and spent 2001 in America working for Reynard in CART.