Will soon-to-be-ex-Ferrari driver Felipe Massa switch to DTM for 2014. Maybe, says Mercedes' racing boss Toto Wolff.SINGAPORE, Malaysia - Toto Wolff, Mercedes' motor racing boss, has admitted that Felipe Massa is a candidate to move into German Touring Cars (DTM) in 2014.Massa, while also hoping to move to Lotus in 2014 but not ruling out a sabbatical since Ferrari decided to replace him with Kimi Raikkonen, recently admitted he might be interested in DTM. "I don't like endurance races," O Estado de S.Paulo newspaper quoted him as saying, "but DTM is something I see as possible."'BENEFIT FOR ANY SERIES'Austrian Wolff, who watched Massa out-qualify his Ferrari team mate Fernando Alonso in Singapore on Saturday, said the 32-year-old might be in the running for a seat with Mercedes."A driver such as Felipe, with services as he has shown here, would be a benefit for DTM or any other racing series," he told Germany's Auto Motor und Sport. "He's definitely an interesting driver. We would certainly consider it."