I am a retired corporate attorney and owner of two VWs with TDI engines, which I really like. I am not at all offended by what the EPA has alleged, and the real facts will eventually emerge.
I do know a lot about class action lawsuits. Law firms which specialize in this type of legal action only need one person who owns one of the affected VWs and will list him/her as the plaintiff, and allege that the potential group of plaintiffs is so large that the suit should be elevated to class action for the sake of judicial efficiency. At this time, it is my understanding that several legal actions have already been commenced, and each will first attempt to knock the others out of the game.
At some point, the winning law firm will obtain a list of all VW owners with affected engines, and will mail them notice of the class action case and that they have the option to opt out. Not opting out means that you will be automatically included as a plaintiff and will supposedly get your share of the award, if any. The law firm will of course get the lion's share of any settlement. These cases never go to trial, being settled along the way. After a settlement is reached, the law firm will give the judge a list of all of its expenses to date, which will come out of the settlement. The amount will be very large, as these firms routinely will charge about $1000 per billable hour for these cases. Also, they do not give a rip about you, but are only in it for the $$$$$.
Thinking about the critical matter of proof of damages, no one on this earth can prove any real damages due to this VW code. We have cars that get higher mpg than the EPA estimate, so we spend less on fuel. No damage here. You also have no legal standing to sue on behalf of the environment or the EPA. It is still raging whether the EPA uses real science or junk science fueled by a political agenda. Using real scientific methods, no one to date has adduced any proof of environmental damage caused by diesel powered cars. So, no damage here either.
What is the almost certain outcome in this case is that VW will negotiate some amount of EPA fines, and will pay a class action settlement, which will not be large enough to pay the expenses of the action. We will all most surely receive some sort of notice from VW to take our cars to the dealer where the computer chip will be reflashed with code that will make your car lower powered, less efficient, and allegedly cleaner running. VW cannot force you to do this to your car, so it will be a voluntary action. The EPA may also mail you a threatening letter that you need to have your car computer reflashed, which you may also refuse to comply with. Most states, like mine, exempt all diesel powered cars from emissions testing.
May the torque continue to be with you,
Speedster