San Francisco Street Sighting - 1974 Chevrolet Vega 2300

Rounding out 1970s Economy Cars week is this 1974-75 Chevrolet Vega 2300 hatchback. It was GM's effort to beat the Japanese at their own game, building a practical, affordable domestic compact with a plethora of body configurations and a lightweight aluminum engine block. The engine was the car's main stumbling block, since its lack of steel cylinder wall sleeves (an $8 per car savings) allowed piston motion and heat to ruin the engine. According to GM engineers, the culprits were brittle valve stem seals and an undersized radiator which, if the owner ignored his fluid levels, together could let coolant and oil run low and make the engine overheat, penetrate the head gasket with antifreeze and cause the pistons to scuff the cylinder walls all to crap. The early cars simply weren't tested for owner neglect and the Vega was designed too quickly and too cheaply to correct everything before production time. The subsequent flood of warranty repair claims cost GM millions. The engine problem was rectified later, as were many other problems, but the Vega never lost its tarnished reputation and was later replaced by the nearly-identical Monza in 1978. The attractive miniature-Camaro styling introduced in 1971 was updated in 1974 to make the car more current, compensating both for the fact that the Feds mandated gigantic 5-mph bumpers and the fact that the Camaro had also been restyled. Still available were the Vega 2-door sedan, 2-door hatchback, Kammback 2-door wagon, and a sedan delivery with blank window panels.