SEAT 133

The SEAT 133 was a small rear-engine car designed and sold by SEAT in Spain from 1974 to 1979. The car used the chassis and engine of the by then defunct Fiat/SEAT 850 and featured a new body in the style of the contemporary, somewhat smaller and only indirectly related Fiat 126.

The car was first exhibited at the Barcelona Motor Show in May 1974. Noteworthy at that time was the compression ratio of only 8:1, which permitted the car to run on 85 octane petrol/gasoline. This was still appropriate in Spain, but elsewhere in western Europe even "regular" fuel grades by now generally guaranteed a higher minimum octane rating.

The 133's design premise was that it had to be a cheap car both to develop and build. Thus, the final product inherited most of its components from the SEAT 850 (or very closely related Fiat 850). As with the 850, it was a rear-wheel drive, rear-engined car, a layout a that was being replaced by a trend for front-engined, front-wheel drive hatchbacks like the Renault 5 and Fiat's own Fiat 127.