Nico Rosberg abruptly retired from Formula 1 at the end of the 2016 season. He’d just beaten Mercedes teammate Lewis Hamilton to the title by five points, but chose not to defend his crown. He became just the fifth driver to voluntarily leave F1 after winning the championship, and the first since Alain Prost in 1994. Nigel Mansell, Jackie Stewart and Mike Hawthorn also feature on that list. Rosberg made his F1 debut with Williams in 2006 after winning the GP2 series. He spent his first four seasons at Grove before joining Mercedes in 2010 to partner the returning Michael Schumacher. He got the…
