My new S40 is incredible. I am 23 pre-dental student who never gave a thought to a Volvo until a friend recommended it. Now, I can't say enough about it. Its safety features are incredible and beat the heck out of its competitors. Not to mention that it rides very well, not too stiff, not too soft, but can handle curves and speed impresssivly well. Bottom line, it is safe, sporty, fun, and looks hot.
Low compression turbo makes for a better ride while maintaining good gas mileage and sport acceleration.
Nothing that I can think of. It has the best of all of its competitors.