What is the fine-grained topic of the following text: Apart from its powerful engine, the 2012 Kawasaki Vulcan 1700 Vaquero is also offered with a tasty exterior design which includes blacked-out detail, a beautiful Kawasaki Green paint on the abbreviated fairing and a sculpted tank. Only return the topic.
2012 Kawasaki Vulcan 1700 Vaquero exterior design features