Motorsport rally legend Walter Rohrl believes Sebastian Vettel should retire from Formula 1 if the four-time world champion feels conflicted over the sport's impact on the environment. Vettel, who has been outspoken on F1's efforts to reduce its carbon footprint, recently appeared on the BBC's debate programme 'Question Time' where the Aston Martin driver was asked whether racing in F1 while defending the environment made him a "hypocrite", a question that drew laughter from the audience. "It does," replied a candid Vettel. "And you’re right when you laugh, because there are questions that I ask myself every day. "I’m not a saint. I’m very concerned when...
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