It's just a marketing gimmick. Persoanlly a red camera turns me right off, although even Hasselblad have done it with the "Ferrari" model. And you can pay $11,000 extra for the privilege of:
"The H4D Ferrari Limited Edition is finished in Ferrari's unique color "rosso fuoco", and bears the legendary Racing Shield. Presented in an exclusively designed and engineered box with a glass top equally labeled with the distinctive Ferrari Racing Shield. Dual layers, one for the camera, with the lens and accessories housed in a separate lower level, are lined with a soft and rich material. This striking case is housed in a special handmade case and therefore is ideal for both storage and display"
H4D-40 Ferrari Limited Edition Camera Kit with 80mm f/2.8 HC Lens