Speed boats or powerboats have been around for a long time. In fact, the first prototype of the present day speed boat was tested on the Necker river way back in 1886. Speed boats are high powered crafts which are propelled forward with either an inbound engine or an outbound motor. Speed boats can range in size any where from four meters to over fifty meters. The most expensive speedboats have all the latest amenities including flat screen TV and iPod dock (to name a few). Speed boats can seat anywhere between two to ten people, depending on the size of the boat. To know more about the most expensive speed boats in the world, visit the link that is mentioned below.