The Autobianchi Primula was a small car (supermini) from the Italian automaker, Autobianchi (a subsidiary of the Fiat group), built from 1964 to 1970. It was notable as Fiat's first ever automobile with the front-wheel drive, transverse engine setup, as well as the first Fiat group car with rack and pinion steering. Primulas were built in the Autobianchi factory in Desio and were priced comparably to the Austin/Morris 1100 models built in Italy by Innocenti.
[] Concept
Before the Primula, all Fiat group passenger cars were rear-wheel drive — the bigger models followed the classic FR layout (front engine powering the rear axle), while small cars were rear-engined. Meanwhile, a practical concept emerged, namely the front-wheel drive layout with the engine mounted transversely, which allowed for very efficient space utilization. First popularized by the legendary Mini, it also found its way to other, bigger models, starting with BMC's own Austin/Morris 1100.
Fiat's chief designer, Dante Giacosa, recognized the potential of that concept, but the company decided to experiment with it not risking the chances of the popular Fiat-branded cars. Thus the Autobianchi Primula emerged — a car marketed under a less crucial nameplate, for which it was an entry into a whole new class of vehicles.
[] Body styles
The car's original body was similar to the BMC's fastback "saloon" concept, available with two or four doors and with or without the rear hatch (which made the car effectively a hatchback), producing four different combinations, referred to in Italian as "berlina". In 1965, a year after the original launch, the lineup was complemented with a Coupé model (effectively a more stylish yet spacious 2-door fastback) designed by Carrozzeria Touring.
[] Driveline
Initially, the Primula was fitted with the 1221 cc engine from the Fiat 1100 D (the Coupé had it uprated to 65 hp), but in 1968 it was replaced with Fiat 124 engines — the berlinas received the 1197 cc 60 hp engine from the standard versions, while the coupé was fitted with the more powerful 1438 cc 70 hp unit. All engines used in the Primula had overhead valves (OHV) — the later twin cam derivative of the 1438 cc unit never found its way under the hood of any Autobianchi. Contrary to similar BMC models, which had the transmissions in the oil sump, the Primula had its four-speed manual transmission placed end-on, and the differential below it. The Primula also featured disc brakes on all four wheels, a safety feature yet uncommon in small cars of its time
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