Royal Rebel

She is already considered the Royal Rebel, with a pierced navel and colorful past. Now Zara Phillips - granddaughter of Queen Elizabeth II and world-champion equestrian - is raising eyebrows by appearing in an advertisement. Phillips, the 25-year-old daughter of Princess Anne, posed for automaker Land Rover - which is one of her sponsors - in a white evening gown with a mud-spattered hem. The photograph for the ad was taken by Mary McCartney, daughter of former Beatle Paul McCartney. The Mail on Sunday, a British newspaper which keeps particularly close tabs on the aristocracy, said in an editorial that "it is hard to get stuffy" about Phillips' choice to appear in an advertisement - something the royal family generally does not do. "She will get away with it because of who she is, and because she has already shown that if you break the rules with panache, your admirers will outnumber your critics," The Mail said. "As she shows in her new pose, she can even manage to look good splattered with off-road mud." Today Phillips, who is 11th in line to the throne, was named sports personality of the year by the British Broadcasting Corp. "I'm actually shaking," said Phillips, who beat Ryder Cup golfer Darren Clarke to the title, which is chosen by public vote. "It's amazing, thanks to all the voters, it's just amazing to be here with all these amazing sports people." On her horse Toytown, Phillips took the individual title in the three-day eventing at the World Equestrian Games this summer in Germany. She also helped Britain win a team silver medal in the competition. Her mother, Princess Anne, won the BBC sports trophy in 1971.