Nader's next book "Small on Safety" was basically the same book about VW's. Described the same swing axle design problems, published the same year that the car manufacturer switched to IRS, eliminated the major complaint, just like the Corvair. VW's had a lower incedent ratio, because lower HP kept the speeds around 75 mph, compared to the higher Corvair speeds.
On the plus side, he did put the fear of the press into the auto industry. They've responded with some design improvements, but more often better spin...
Eric