A four-wheeled vehicle includes a steering mechanism having a bar handle, right and left front wheels, and right and left rear wheels. The vehicle includes a front cover and a windshield disposed in front of the bar handle. The vehicle includes a driver's seat, and a rear passenger seat disposed behind the driver's seat and between the rear wheels. The rear passenger seat is directed forwardly. The vehicle includes a power unit part disposed below the rear passenger seat, and a body cover disposed rearwardly of the driver's seat.