The S60 T5 is an extremely fast, comfortable, and "Safe" vehicle. The car feels a though it has an after burner because of the turbo engine.
The seats in this car are the most comfortable I have ever ridden in. On long trips, you don't even realize you are sitting in a car.
The car has more features than many others in the same category but, at a greater value.
Overall, this is a great car which is safe, reliable, and value packed.
My favorite feature in this car is the automatic adjusting seats and mirrors when the remote door opener is pressed. My wife and I drive with very different settings and it is a pleasure to have the seats and mirrors adjust just by opening the door.
I can't think of any improvements that are necessary since the car is fully equipped and runs great.