page_title: Fiat 850
section_title: Abarth
hierarchical_section_title: Fiat 850 / Non-Fiat derivatives / Abarth
caption_attribution_description: Gorgeous.
context_page_description: The Fiat 850 is a small rear-engine, rear-wheel-drive car manufactured and marketed by Italian car manufacturer Fiat from 1964 to 1973.
context_section_description: Abarth produced several tuned versions of the Berlina, Coupé, and Spider, with ever-increasing displacements. These belonged to the OT series of Abarth cars—standing for Omologata Turismo or "touring homologated", which also included two-seater sports racing cars.
  Fiat-Abarth OT 850 Berlina (model 101): Abarth's first 850 derivative, introduced in July 1964. Its Tipo 201 engine was the regular saloon's 847 cc inline-four brought from 34 PS (25 kW; 34 bhp) to 44 PS (32 kW; 43 bhp); top speed went up accordingly from 120 km/h (75 mph) to 130 km/h (81 mph). The OT 850 could be distinguished from the standard Fiat model by its Abarth badging, an asymmetric front ornament with the Abarth shield on the right hand side and the "Fiat Abarth" script on a red field on the left, and wheels with cooling slots. From October of the same year it became available in two guises: OT 850 Oltre 130 ("Over 130"), almost unchanged from the initial model, and OT 850 Oltre 150, with a 53 PS (39 kW; 52 bhp) engine, front disc brakes and a 150 km/h (93 mph) top speed.
  Fiat-Abarth OT 1000 Berlina: introduced in October 1964. Engine displacement increased to 982 cc, it produced 61 PS (45 kW; 60 bhp) and 79 N⋅m (58 lb⋅ft) of torque. Front brakes were changed to disks.
  Fiat-Abarth OT 1000 Coupé and Spider: introduced in October 1965. Compared with the saloon version, the engine was a more powerful Tipo 202 producing 62 PS (46 kW; 61 bhp) and 79 N⋅m (58 lb⋅ft) of torque. Top speed was 155 km/h (96 mph) for the coupé and 160 km/h (99 mph) for the spider. The coupé was facelifted in November 1968 concurrently with the regular Fiat 850 Coupé, receiving a full-width grille and twin round tail lamps.
  Fiat-Abarth OTR 1000 Coupe: launched alongside the OT 1000 Coupé, and based on the 850 Coupé bodyshell as well. Its type 200 engine had an all-new Abarth-designed cylinder head with valves arranged in a V instead of parallel—hence the R in the name, standing for Radiale, radial. The combustion chambers were shaped as two spherical caps, one around each valve; there was an inlet duct per cylinder, each fed by one choke of the two twin Solex carburettors. Abarth claimed an output of 75 PS (55 kW; 74 bhp) at 6500 rpm and a top speed of 172 km/h (107 mph) for the road version. The OTR was set apart from the OT 1000 Coupé by a rectangular front grille bearing the Abarth badge, needed for the front-mounted radiator.
  At the 1965 Turin Motor Show Bertone showed on its stand a one-off OTR 1000 berlinetta, based on the 850 Spider but with a fixed roof and a front radiator opening. Suffering the competition of less expensive and less complex OT models, production of the OTR 1000 ended with the arrival of the restyled 850 Coupé in 1968.
  Fiat-Abarth OTS 1000 Coupe: introduced in April 1966. OTR 1000 bodyshell, but standard head OT 1000 engine with output upped to 68 PS (50 kW; 67 bhp) and top speed to 160 km/h (99 mph). FIA homologated it in the GT class in 1966. Abarth later developed several modifications, including a new inlet manifold for two twin-choke Solex carburettors. This gave birth to the OTSS 1000 or OT 1000 SS. Both OTS and OTSS were restyled in November 1968 like the OT 1000.
  Fiat-Abarth OT 1300 Coupe: November 1966 launch. Visually identical to the OTR 1000 save for the widened 5½-inch wheels, it used a bored out Fiat 124 series engine displacing 1280 cc. The car also received a different carburetor and sharper cams, raising engine power to 75 PS (55 kW; 74 bhp) at 6000 rpm. Claimed top speed is 172 km/h (107 mph), the same as for the equally powerful OTR 1000, but thanks to the simpler engine the car was cheaper and more pliable as an everyday drive. Restyled in 1968 together with the 1.0-litre OTs.
  Fiat-Abarth OT 1600 Berlina (model 136/C): an extreme variant based on the 850 saloon body, unveiled at the October 1964 Turin Motor Show. It was fitted with a Tipo 236 1592 cc twin cam, twin spark engine from the Fiat-Abarth 1600 Sport racing car. The 1.6-litre put out 155 PS (114 kW; 153 bhp) and top speed was 220 km/h (137 mph). The rear wings were greatly en
caption: Fiat-Abarth OT 1600
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