I've been in the dealership for constant warranty work on this thing. I've got the 2.2 and the terrible Getrag manual transmission. Let's start with the tires. Continentals are junk, if there is moisture on the road, traction has become a thing of the past. Brakes have ceramic pads but terrible rotors. You'll find that they warp rather quick! Engine leaks like a sieve, and I'm only at 12k miles. Needs new head, valve cover gasket and if the main seals leak, those too. Transmission requires you to sit 10-15 seconds at a stop to shift into reverse. Tranny is incredibly weak, it's built to withstand the engine. Anything added for performance is questionable to the tranny. Please note that this is a SAAB designed engine, and an OPEL designed car, its not truly a GM vehicle, and it's starting to show, a GM vehicle wouldn't be this terrible.
The warranty, and that sums up my favorite features. I've used it so many times its ridiculous.
New 4 cylinder engine, new transmission, quality tires are a must!