Ride, room (cabin and trunk), and a quiet cabin! The 2008 Taurus is large! It has the most back seat room and the largest trunk I have ever seen in a six-cylinder car, no contest! The new Taurus is heavier than the 2007 Five Hundred which gives it a smoother ride, but the Five Hundred was a little more nimble. Take it on the highway where it belongs! 3.5L engine is a significant improvement over the Five Hundred but acceleration has only been upgraded to adequate. Rather quiet cabin, turn on the radio and hear almost nothing outside! Glides over bumps in the road. The high seating position is great, and the (front) seats give good support for your back. Very comfortable inside.
Truck space and rear seat room, plus the smooth ride and very quiet cabin.
Acceleration could still be improved. Taking the on-ramp onto a busy highway requires you to floor the gas pedal to get on. The view through the rearview windshield is vertically narrow, but the large side-view windows compensate for this.