As we reported earlier, the Finn Formula 1 world champion Mika Hakkinen, who also did some DTM after retiring from F1, is back in motorsport with the Mercedes SLS GT3 for 6-hour race Chinese race at Zhuhai next week.On this occasion Mercedes released a video of Mika preparing for the job and getting to grips with the car. Also for those young viewers who may not remember Mika in his golden days, Mika tells the story of his career.