Motor racing, it seems, is a hard habit to kick. It is the all-or-nothing nature of the sport. Success is defined by tiny increments – and errors within the Doppler-shifting maelstrom of split-second decisions promise only failure, or worse. Racing demands commitment and the best drivers do so with vigour, and glory in the embrace. Katherine Legge long since succumbed: "I love the driving," she says. "It has been my life, 24 hours a day, ever since I was nine. It's like an addiction – it gets in your blood."

Read the full story at www.theguardian.com/sport/2014/jan/18/motorsports