Patent ID: 7445075

Claim:
A four-wheeled vehicle comprising: a steering mechanism having a bar handle; a front part having right and left front wheels; a rear part having right and left rear wheels; the front and rear wheels defining a straight line at a level extending in a longitudinal direction through uppermost points of the front and rear wheels; a driver's seat disposed at said front part; and a rear passenger seat disposed behind said driver's seat with a backrest for the driver therebetween, said driver's seat and said rear passenger seat cooperating with each other to provide a single seat, said backrest being positioned at an intermediate part of said single seat, said rear passenger seat facing forwardly, the rear passenger seat is entirely positioned forwardly of forwardmost points of the rear wheels, the rear passenger seat has bulged portions provided at opposite sides thereof for providing a larger width than the driver's seat, and the bulged portions allow the rear passenger seat to be occupied by two passengers sitting thereon side-by-side; wherein the driver's seat is disposed at substantially the same level as the straight line, such that in side view, more of the driver's seat is located below the straight line than above it so long as some of the driver's seat is located above the straight line, and the rear passenger seat is disposed at a higher level than the driver's seat; an engine disposed underneath the rear passenger seat and below the straight line; the vehicle having a width and an overall length, and the width is substantially half the overall length; whereby said vehicle with driver and passenger maintains a low center of gravity.