Without question, the 944 is very different from the Datsun 280ZX, I have owned for seven years.   Its cornering stability and quick response make my daily driving quite enjoyable.   Automatic climate control is very useful, and the heater works very well compared to that of my ZX, which takes fifteen minutes to start blowing hot air.  The rear hatch is much wider, so it's easy to store luggage.  My ZX lacks the T-Bar roof, so I like the removable roof of my 944.  The wind doesn't blow my hair when the windows are down, and I wonder if the designers have thought about it when designing the A-pillar.  There are some dislikes however, for example the rear speakers aren't connected to the audio for some reason.  The gas mileage is 21 mpg (city), which is better than expected, but the tank capacity is too small, requiring fuel stops more often.   Finally, the engine rpm below 2000 is almost useless, forcing me to depress the gas pedal harder.  Still, Porsche is Porsche, and it gives so much pleasure when driving.  

Just because I like my Porsche so much, it doesn't mean that I completely forgot about my 280ZX.  The ZX (but not Z) is a ground touring car, and the seats are much more comfortable than the 944's bucket seats.  My car is equipped with a naturally aspirated 2.8 liter inline 6, and the torque at a low rpm is very useful in city driving.  It starts accelerating at 1500 rpm, compared to the 944's 3000 rpm.  Gas mileage of my ZX is about 19 (city), so it's not as good as the 944, but the tank capacity is 21 gallons, and the range of 350 in city and  450 on highway.