Former F1 driver Karl Wendlinger has claimed Helmut Marko once threatened to sack him via his mum. The 81-year-old Red Bull supremo, known for his toughened approach, apparently didn't shield ...

Former F1 driver Karl Wendlinger has confessed how Helmut Marko once threatened to fire him during a phone call to his mother. The Red Bull head honcho is renowned for his taskmaster methods ...