The first 508 came with a front-mounted four cylinder petrol/gasline side-valve engine of 995cc. Maximum power was listed as at 3500 rpm, providing for a top speed of approximately 80 km/h (50 mph). Power passed to the rear wheels through a 3-speed manual gear box without the assistance of synchromesh on any of the ratios. Stopping power was provided by drum brakes on all four wheels. At the end of 1933 power was increased to at 3500 rpm, and the maximum speed went up to 85 km/h (53 mph). Transmission was upgraded to a four speed gear box. For 1934 the car now came with a slightly more aerodynamic looking "berlina" (saloon/sedan) body, available with either two or four doors. This version was identified as the Fiat 508B, and the original 1932 model was now, retrospectively, became the Fiat 508A. The Fiat 508 was fitted with a 995 cc side valve engine. The first 508A, introduced in 1932, was a 2-door "Berlina" (saloon/sedan) with four seats and a three speed "crash" gearbox. The front seats could be slid forwards and the backrests tilted in order to facilitate access to the back seat in what was a relatively small car. Unusually, the windows in the doors could be wound down by turning a crank handle fitted to the door, while the windscreen was hinged at the top and could be opened, while two windscreen wipers were powered by their own electric motor, positioned inside just above the windscreen. The interior used rubber mats while the seats were cloth covered. Accessories offered included a dash-mounted rear-view mirror, an interior light mounted on the centre of the roof and an externally mounted luggage platform at the back which, when specified, came with the spare wheel repositioned to a mounting point on the side of the car between the left-side door and the front wing. A "Lusso" ("de Luxe") version also featured a better type of cloth covering for the seats as well as extra bright work around the lights, front grille, wheels and door handles. With the 508B, introduced early in 1934, the body was described as "more aerodynamic" although from the perspective of later developments in car styling, the 508B still followed the rather boxy lines associated with cheap cars from the early 1930s.