Mick Schumacher signed deal with Van Amersfoort racing last season . 16-year-old is son of seven-time F1 world champion Michael Schumacher . Mick makes official Formula 4 pre-season test debut at Oschersleben . Team-mate is Harrison Newey , son of Red Bull designer Adrian .
Mick Schumacher signed deal with Van Amersfoort racing last month . 16-year-old is son of seven-time F1 world champion Michael Schumacher . Mick makes official Formula 4 pre-season test debut at Oschersleben . Team-mate is Harrison Newey , son of Red Bull designer Adrian .