Start with what the SEAT 133 is: a 2-door saloon with 843 cc I4, built from 1974 to 1982, as the oil crises and the first emissions rules rewired the industry. What it meant takes a little longer.
The background
The SEAT 133 is a small rear-engined car designed and sold by SEAT in Spain from 1974 until 1979, and until 1982 to export markets. 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 smaller Fiat 126.
The engineering
The engine is 843 cc I4; other versions carried different engines, listed in the specification table below. On the scales it comes to 690 kg. Drive goes through a 4-speed manual. The layout matters: the engine hangs behind the rear axle, a layout that gives ferocious traction out of a corner and a reputation to match on the way in. The wheelbase is 79.125 in. These are manufacturer figures carried by Wikipedia and Wikidata, not road-test measurements.
Where it sits
In the SEAT line-up the SEAT 133 has a clear place: it replaced the SEAT 600 / SEAT 850; it handed the line to the SEAT Panda / Fiat Panda (European exports) / Fiat 147 (Latin America); the factory was Barcelona. The cars a buyer would have weighed it against include the Lamborghini Countach, the Jeep Cherokee, the Volkswagen Golf. Its SEAT stablemates include the SEAT 124 and the SEAT 1200 Sport.
Owning one today
There is no federal ownership record for the SEAT 133 — it predates the complaint database or was never sold in the United States — so MotorJury publishes no running-cost figure for it. For a car of this age the price is set by the collector market and the condition of the individual example, not by a formula.