Volkswagen Group is moving toward wrapping up its diesel deceit in the United States, but in Europe, it may only be starting.

European owners of Volkswagen Group vehicles—Volkswagen, Audi, Seat, and Skoda—may justifiably feel as if they've received the short end of the stick when it comes to compensation.

In fact, there is no compensation.

DON'T MISS: Settlement for Audi, Porsche, VW 3.0-liter diesel TDI owners announced

The news service Reuters reports that VW Group will not offer a buyback option and has no have plans to compensate owners in any way, shape, or form.

Naturally, this hasn't sat well with some owners, who feel dissatisfied with VW's sole offer: an extended warranty.

But the concept of class-action lawsuits—the ability for consumers to band together and sue large entities en masse—doesn't exist for most Europeans.

2013 Audi A8 TDI

2013 Audi A8 TDI

However, individual lawsuits are forthcoming and a U.S. law firm is working with owners to ensure those suits are filed quickly and properly.

Thus far, Volkswagen has remained free of any criminal charges in Europe, too.

But that may change: Germany has opened an investigation into possible emission cheating devices found in the 2009-2013 model years of the Audi A8 TDI luxury sedan.

READ THIS: Germany investigates possible Audi diesel emission cheats

Additionally, intricate emission cheating software has reportedly been found on Porsche Cayenne SUVs, according to Forbes.

The Cayenne reportedly features two distinct driving modes: one that detects when the vehicle is on the dyno for testing, and one dirtier, aggressive mode.

The latter is said to spew 68 percent more NOx pollutants than allowed in Germany, per a careful study conducted by Germany's TÜV.

2015 Porsche Cayenne Diesel

2015 Porsche Cayenne Diesel

Combine all of this information with one particular lawsuit that may have set an important precedent for VW owners, and Dieselgate 2.0 could be brewing in Europe.

A German court ruled in favor of one Volkswagen TDI owner in a single lawsuit and ordered the automaker to fully reimburse the owner for the original purchase price of the car.

That's in contrast to the U.S. settlement, in which TDI owners were offered what is effectively a generous used-car value for their cars—but not the full price they paid when new.

The German judgment could prove to be a disastrous precedent for Volkswagen if other owners also win their cases and are granted similar compensation.

2015 Porsche Cayenne Diesel

2015 Porsche Cayenne Diesel

Bosch isn't free and clear either—the supplier reportedly took an active role in developing the emission cheating software.

German authorities are continuing to investigate its role as well.

Could Dieselgate 2.0. could prove even worse for the firms involved in the deception?

That now seems to be at least a plausible possibility.

_______________________________________

Follow GreenCarReports on Facebook and Twitter.