2007 Mercedes-Benz C-Class C230 Sport 4dr Sedan (2.5L 6cyl 6M)
I drove the Lexus IS250 and looked at the BMW 3 series. The C230 is my favorite by far. The car has a great feel for the road, and handles like a dream. Ample power from the 2.5 liter V6 really gets you up to speed in a hurry. On the highway, the C230 likes to fly. I find myself having to set the speed control to avoid excessive speeds. My highway mileage is better than the EPA estimates of 25mpg. I have gotten 29mpg on two 300 mile trips with the cruise set at 80.
I love the Harmon Kardon premium sound, and the manual shifting automatic is fun to drive.
Rain sensing wipers sometimes come on without rain. I think they detect bugs or something.