I just bought a 92 model NA 2 weeks ago now. So far I must just say, "Wow that is some fun ride"! The acceleration is awesome once you get around 3,000 to 3,500 rpm's, this thing starts to come alive. Winding out the gears on mechanical gauges is very satisfying. That 3.0 liter V-6, 24 valve, DOHC, Naturally Aspirated engine is pretty hot. I'm thinking about getting an INjen IS Cold Air Intake, but I guess first, I should do the timing belt... It has 118,300 miles but still hasn't lost its quick. So if you are thinking about buying one, they low ball the price at k be bee. It is usually hard to find one under $4,500 that's any good. There is nothing like a T bar roof as well. Update November 13, 2016 I'm not getting the intake but I did do the timing belt, spark plugs, drilled and slotted rotors with Ceramic pads, etc... I drove it from Florida to Pennsylvania and back with not even a hiccup. It can do a burn out at the drop of a hat, and just grips the road.
I can best describe this car as an addiction. I need at least one Nissan Z fix a day. It is very powerful, and handles like no other car I have owned or driven. I would recommend this car to anyone who has a strong appreciation of cars, and not to someone who has no sense of style or performance (Prius Drivers). It has been very reliable, and never fails to get me from point 'a' to point 'z'. If anyone gets a chance to buy one, they should take it!
My favorite features are most notably, the engine. It kicks out a lot of torque off the line, and I always find myself crying "uncle!" way before it does. My next favorite feature(s) are the T-Tops. No one can resist the guy/girl driving around with the tops off in the summer.
I absolutely hate the OEM wheels. They are the ugliest things I have ever witnessed. Next is the transmission's synchronizers. Nissan put the cheapest synchros they could find on this generation. Finally, the brake rotors tend to warp, but they are easily improved by putting on skyline brakes.
My 1992 model is my second Nissan 300ZX (the first being a 1990) and they are wonderful cars. I'd recommend them to anyone. Their gas mileage is never great, but is never horrible either, especially for the car you are getting. My car is around 12 years old and still looks better than most newer cars.
The t-tops in my first z were so much fun. My new one is a slicktop, which is supposedly lighter and more rigid. I think it might be true:) It has a lot of leg space for both the driver and passenger, and always a lot of power.