The Beetle changes its appearance. Two brake lights combined with taillights and reflectors, a partially-synchronized gearbox and improved suspension comprise the initial improvements aimed at increasing safety and comfort. The split rear window of the "Brezel Beetle" is replaced in 1953 by a larger oval-shaped window which gives the "Ovali Beetle" its name. Single-compartment rear lamps with integrated brake lights, a double exhaust and a PVC sunroof are added in 1955. The rectangular rear window and an enlarged windscreen improve driving conditions from 1957 onwards; a large wing mirror is added one year later.