 The 2003 Mitsubishi Diamante has unexpected, powerful, and quick acceleration.  It has smooth and very comfortable road performance after I changed to better touring tires.  You need to use only the best windsheild wiper blades otherwise they are noisy.  The specs require plus fuel, but I alternate with regular without any noticeable mileage or performance difference.  The fuel indicator shows close to empty when there is still more than a hundred miles left in the 19 gallon tank.  I average 22 mpg in the city.   It has a good stereo with controls on the steering wheel.  I don't understand why professional car reviewers do not rate this car higher.       