A ramp system for installation on a vehicle, and a vehicle for conveying wheelchair users. The ramp system includes an intermediate element having a longitudinal guide and a ride-on access plate. The ride-on access plate is moveable from a vertical transport position to a horizontal stowage position by pivoting about a movable axis. A guide pin coupled to the ride-on access plate is guided by the longitudinal guide of the intermediate element as the ride-on access plate is moved from the vertical position to the horizontal position. The ramp system further includes a guide strut that is pivotally mounted to the ride-on access plate and the intermediate element. The movement of the ride-on access plate between the vertical and horizontal positions is thereby controlled relative to the intermediate element by the longitudinal guide and guide strut.