The cycling legend will be part of a star-studded line-up that will feature at the third McRae Rally Challenge, which takes place today (Saturday) and tomorrow (Sunday). The six-time Olympic champion made his rally debut at the previous running of the McRae Rally Challenge three years ago, and will appear again this weekend. It raised awareness of stage four cancer, and funds for cancer charities, and has so far generated in excess of £2 million. She is taking part in her first rally, whilst her uncle, and Colin's brother, Alister, will also be involved, alongside his son, Max. "For some of them, it could well be the biggest rally event that they will ever take part in, regardless of how they progress in their own careers," Stuart added.