1981, Cimos began to produce a specific model, the Dak, an enclosed cargo utility vehicle, very similar to the fourgonette. The basis was an unstretched Diana chassis, unlike the French Acadiane which was based on the longer chassis of the 2CV AK400. Cimos also prepared a pick up truck from the same basis, the Geri. Sales were 2,200 Dak and 900 Geri. Citroën did not allow Cimos to export these utility vehicles, and this rift led to the French firm ceasing delivery of parts to its Yugoslav partner by 1985, dooming the joint venture. Own-design motorcycles - automatics At the brink of the 1970s, Tomos started preparing for the production of "automatics" of its own design, as the market was increasingly interested in such type of motorcycles and the components produced abroad were more and more expensive. Therefore, they produced Automatic A1 with improved single gear engine which was built into the framework structure of the previous Automatic. Its successor, Automatic A3 was made in 1973 when they launched the new, modernized production line with automated machines for framework welding. This was the beginning of the production of new frameworks in Tomos which were visually different from the licensed Puch's motorcycle frameworks. As the standard of living increased significantly in the 1970s, the number of young buyers also grew. These were attracted by automatics and mopeds of the type A-OS, A-ON and APN. The latter type was particularly popular among the young, which is why Tomos started producing special variants of these mopeds with raised handlebars, seat with back support, side bags and a lot of chrome. In the 1970s, several new models of Colibris were sent to the markets. Colibris T-03, T-12 and T-13 had Puch's motors while Colibri 14V had inbuilt motor produced by Tomos, according to its own design. After 1973 all motorcycles and bicycles with motors attached produced by Tomos were equipped with in-house manufactured engines. In this period, they also developed Colibri 15 with a stronger motor which could almost compete with motorcycles. Oil crisis and modernization In the 1960s and 1970s Tomos' developmental activity reached its peak in terms of the volume of patents and prototypes. However, during the 1979–1980 time frame Tomos was faced with restrictive environmental standards for the first time. In the 1980s, Tomos modernized the entire range of two-wheelers and concentrated on reducing the level of noise and harmful emissions,