The Renault ABx is a range of medium-duty forward control trucks produced by Renault between 1934 and 1937. The range was made of the ABF and the ABG. Renault also developed a bus/coach called the ZP using the same cabin. History By 1934, the French government established various restrictions on commercial vehicles, among them a decree that imposed limits on design, including: the overall width of a road vehicle should not exceed 2 metres 35 centimetres and the overall length 10 metres. The overall length of a tractor-trailer unit should not exceed 12 metres. The gross combined weight of any laden vehicle should not exceed 15 tonnes, and the load on any axle 10 tonnes. The average weight per metre of length of any vehicle should not exceed 4 tonnes in the case of vehicles with two axles. As a result of these restrictions, Renault began to introduce forward control designs, replacing the normal control (conventional cabin) it had been using in the early 1930s. In September 1934, the company unveiled a forward control truck for 1935 at the Paris Salon, the ABF (5-tonne payload truck), and announced a second, the ABG tractor unit (hauling capacity of up to 10 tonnes), which was unveiled at the Brussels Salon in November of that year. ABF The ABF was the first forward control truck from Renault. In 1937, the French military commissioned a couple of ABFs adapted to use natural gas as part of a push for alternatives to petroleum-derived fuels. In the early 1940s ABFs were fitted with a trolley pole and electrical equipment on front, as part of an experiment on electrical trucks. The ABF was put out of production in late 1937 and replaced by the AGK. ABG The ABG was primarily aimed to be used as a tractor unit. The Societé Algerienne des Transports Tropicaux, a company focused on trans-Saharan travel, commissioned ABGs bodied as mixed vehicles with a second row of seats in the cabin, which was lengthened accordingly, making them able to take three to four passengers. The ABG was retired from Renault's lineup in late 1937. Technical details The ABF and the ABG have the same inline-four engines: a 5.9-litre petrol unit and an 8.4-litre diesel, both delivering at 2,000 and 1,600 rpm respectively. The ABF has servomechanical brakes and the ABG has both servomechanical and air brakes. The suspension on both trucks is by