Surprisingly fun: Honda Fit 1.5.
Great gearbox, an engine that loves to rev, and a decent chassis conspire to make a very practical and sensible car far more fun than it has any right to be. It's as fun as a current Civic Si.
Surprisingly bad: 1995 Chrysler Concorde 3.3. (my grandmother's car, it's basically new with just 8,000 miles on it)
What. A. Turd. For some reason people seem to think that the LH cars were actually good, a view which could only have come about as a result of drugs or the competition being some of the worst cars the planet has ever seen.
Good things? It's old enough that the thin pillars give good visibility. It also sounds pretty nice at idle when standing outside the car. The engine is powerful enough.
Now, the bad. The car rolls like the Costa Concordia. My mum once said she was borderline seasick. The steering is light with no feel and the rack is prohibitively slow. The steering wheel is covered in a gooey plastic so stretchy that you can feel the metal rod beneath it. The interior is cramped, with bizarre seating positions front and rear and very poor legroom. The brakes require an enormous effort to stop the car with, but the pedal feel suggests that the pads have been replaced with bricks sliding along the calipers.