The Fiero’s makers couldn’t decide whether they wanted a sports car or a fuel-efficient commuter. In the end, this lack of identity and severe cost-cutting killed Fiero’s chances at success. General Motors bought the engines in bulk, which meant they were poor quality. The rest of the car was essentially built from GM’s spare parts bin. When the Fiero debuted in 1984, critics called it “overweight and underpowered.” When engine fires became a problem, potential customers found other cars to buy.