Oversteer in the first generation design with a swing axle. People werent following the official fire inflation recommendations, that combined with engine in the rear led to oversteer crashes, particularly the Lakewood wagon. The swing arm suspension, that quite a few rear engine cars also had including the VW Beetle, was replaced with a four wheel independent suspension derived from the Corvette in 65 and for the rest of production into 69. But, Ralph Nader had done his damage, plus the advent of the Ponycar led to shifting consumer tastes. A Corvair can be fast and certainly handled better than any 60s ponycar, but things were too far gone. I personally love the neat, orderly engine bay of a well kept Corvair, and the second generation was one of the best looking cars from that decade, period.
Hey...thanks for that.