Royal Ascot 2012: Newmarket agog at 4.30am to see Australian wonderhorse Black Caviar She is muscular and butch, boasts a powerful backside and a slightly longer body than many sprinters, suggesting she would have the scope comfortably to stay further than six furlongs. At 560kg, she is way (between 10 and 15 per cent) heavier than most Flat horses. It may not be linked to elephants, but her nickname is "Nelly." After Phar Lap's death they found that his heart weighed 6.2kg rather than the average 3.2kg, and, one imagines, deep within Black Caviar's expansive chest there lurks a similar-sized pump. What kills off her rivals, however, is that when all those component parts come together it produces a length of stride bettered only by kangaroos in Australia. Trotting to the Al Bahathri and cantering up it, she floated. If shes takes six or eight strides fewer than the others in a race it must be to her advantage. "What makes her seem like she's doing it so easy all the time is her stride," Paddy Bell, the former jockey entrusted with her exercise, said. With other horses everything just goes faster, the legs, the feet, the head, but with Black Caviar nothing goes quicker, her stride just gets longer. "People always ask if I feel the pressure," he added. "It's not that "P," it's the other "P" - privilege - I feel, being allowed to ride a horse like her." It is British racing's privilege that she is here.