The Myth of the Seat 600: Why Old Cars Were Not More Durable

The survivorship bias behind the myth of old cars

When a four-year-old car breaks down, people often claim they don't make them like they used to, citing a neighbor's forty-year-old Seat 600 that runs perfectly. This comparison seems compelling but is fundamentally flawed. It contrasts new cars that failed with old cars that survived. The majority of older vehicles ended up in scrapyards and are absent from the conversation.

The logic itself reveals its absurdity: if this reasoning were valid, people born this century would be considered weaker than those born before the Spanish Civil War, simply because all deceased individuals died young. No one argues that. Yet, with cars, this fallacy repeats at every dinner table.

What truly measures a car's reliability

To determine if a car lasts longer than another, one must consider all units manufactured, not just those still on the road today. Life should be measured in kilometers, not years: a fifteen-year-old hatchback with 80,000 kilometers proves nothing. Using this metric, the conclusion reverses. Some note that **until the late 1980s, no engine reached 100,000 kilometers** without workshop visits, and models like the Seat 124 or Renault 5 were scrap by then. Others argue modern engines, with lower rev ranges and scheduled maintenance, reach 400,000 kilometers.

Ironically, the nostalgic Seat 600 was not the paragon of virtue memory suggests. **It consumed over four liters per 100 kilometers** at best, weighed 690 kilograms, and had questionable reliability: some owners replaced the head gasket more times than they admit, sometimes swapping the entire engine.

Breakdowns stem from electronics, not mechanics

Here, the myth has a grain of truth. Mechanics are mature technologies with a century of evolution; surrounding electronics change every few years. Where carburetors once existed, there are now ECU-controlled injections; where switches were, there are modules connected via CAN bus. According to some participants, this complexity leads to more visits for wiring and chips than for pistons.

Nuance matters: not all electronics are the enemy. Electronic ignition replaced points—which drifted out of adjustment—and improved reliability, consumption, and cost. The issue isn't proven electronics, but those renewed before fixing early faults. Injection's bad fruta stems mainly from high-pressure diesel systems, where minor failures stop the car.

The 1990s car as a supposed sweet spot

Some argue the perfect balance of performance, simplicity, and electronics was achieved in the 1990s: sedans like the Volvo 850, Saab 9-5, BMW E34, or Mercedes W124, which cost €2,500 today and last 25 years with reasonable care. Their core argument is economic: **it would be unviable to manufacture such a car from scratch today**. True, but these cars sold without air conditioning, power steering, ABS, or electric windows in many versions. They didn't break down because they lacked components to fail.

Safety is where nostalgia clearly loses. A current Renault Modus performs better in frontal crashes than a 1990s sedan, and modern bodies use heavier alloys previously unavailable. The tough-car myth rests on a paradox: old cars were simpler, not stronger. Those remaining are precisely the ones that didn't fail.