This car is in use as a taxi, and so it suffers more than a 'normal' car. Things gone wrong are:
Turbo defect (wires and small things).
Radiator leaked twice within two months!
Steering wheel (leather) torn.
Powered window left acts on it's own in cold temperatures.
Dashboard display lights very difficult to replace (and need to be replaced quickly).
Clutch works badly (without feeling).
Paint falls from the door undersides.
Needs to go to the dealer more after 150,000kms.
A little underpowered (from 2500min-1 it starts to accelerate). Typical diesel sound. Clutch isn't working 100%.
But the spacious interior is OK; the (optional) leather sports seats, the full list of standard items and the price.
Another good thing: You can order ANY paint you need on a new Omega. So we've order American Cab yellow. Quality is not too convincing (look on the door undersides).
It's not like a Benz or a Volvo, but we really like the Opel for its excellent handling. You really can go fast in a curve with it.
It easily drives 10 kilometres on a liter in the city (high speeds) with ECC on. Top speeds of 190 km/h have been reported.
For Dutch taxi companies, a Benz is too expensive now. An Omega (or a Passat) are good alternatives! A big shame, however, is the fact that it takes a week or so for (big) dealers to get the RIGHT sort of part for the car!