Eye to the main chance?

So this VW emissions test business.  Apparently the company have put several billion Euros aside in anticipation of being sued by those who have bought their cars.  But is this reasonable?  I would imagine that the vast majority of people who buy a car choose it on looks and performance rather than on emissions.  That's not to say that they pay no regard to the emissions figures, but that that aspect is way down the list of what is important to them.  I'm sure there will be plenty of people queuing up to sue VW but I'm equally sure that most of them will be looking to make a quick and easy buck rather than genuinely feeling they have been conned into buying a car they might otherwise not have bought.  Such is human nature.