When Booth and his crew step off the boat to answer onlookers' questions, they explain that Aurelia takes her name from Lancia Aurelia, which, long before the popular Porsche 911, was the first GT (grand tourer, or gran turismo) car in the world. Gulf Racing, which today has cars competing everywhere from Le Mans to Dubai, sponsored that first GT with its trademark blue and orange colors. The rest of Aurelia's paint job — that standout number 10 — comes from the yacht being Hull No. 10 in Heesen's 37-meter series. She launched on the 10th day of October, which of course is the 10th month of the year. The owner was forced to choose a number to fulfill the race-car-inspired styling, and 10 just felt right.