Empty V wrote:* How's the reliability? * Are they easy to work on? * What's the difference between the models? * What will get me the best bang for my buck? * How long do they last with good maintenance?* Can you change out the audio system?* What common issues do I need to look out for?* Out of the box are they track ready(besides tires)?* How much different is the stick form the Auto?* Are they a blast to drive?
Reliabilty? I hope I don't screw myself here, but mine's been nothing but good to me. Had a code pop (P0430) just at 79K miles telling me a cat was going bad and Nissan replaced both under warranty (there's an 8 yr/80K federally mandated warranty on cats).
Easy to work on, how? Are you talking just oil filters and spark plugs or something more? Electronics are integrated throughout the car (drive by wire throttle anyone?) so quality modifications and upgrades aren't as simple as putting an air filter and exhaust on a 240SX. I actually printed up the FSM for my 240SX and it's 500 pages or so. I had planned on doing the same the for my Z but decided not to when I the page count hit 1200 or so, and I hadn't even completed the tally for all the sections.
My '05 just rolled over 80K miles and besides the cats I mentioned earlier there's never been a problem with it. Oil and filter change every 5000 miles+/- (Mobil 1 Sythetic - Gold Cap) and following the FSM maintenance chart is all I're ever had to do.
You can change out the audio system, there are a few posts in here with some excellent pics (look for Kuhan's post where he guts his audio components). It might be easier on the models without the factory nav unit as the nav unit is tied into the stereo controls in order to reduce the volume sound volume of the head unit before giving navigation instructions.
Common issues are the power window motors on the '03-'04 models (though that's an easy replacement), the "tire feathering" issue on early ('03 & '04) models though that's been addressed and fixed, and the oil burning issue on some cars that came with the Rev Up engine. 3rd gear grinds are an issue in older '03-'04 models with the way the syncros are setup inthe gearbox.
I can't address track readiness out of the box as I haven't tracked mine. Other can say more than me. I've heard various complaints about the OEM Brembos on the Track, 35th Anniversary (what I have) and the Grand Touring model being underpowered and experiencing fade. I've never experienced it even on some summer runs through the mountains. Some decent street/circuit pads (like Racing Brake's ET700, Endless MX-72's or P.Mu's HC+) and some DOT4 fluid would be a good start, especially if it's going to be street driven. If you pick up a non-Brembo equipped model a big brake setup will be in order for serious track work. Maybe Bubba can pop in here and give some better guidance.
Stick and auto difference? I can't really tell you since I only looked at manual models when I was looking to retire my 240SX from daily driving. Even with the drive by wire throttle you're going to have more control over what the engine is doing with a 6speed manual than you will ever will with an auto, even when you consider the "automanual". And since you mentioned track-ready earlier I'll say you should just go ahead and learn to drive stick and pick up a 6MT and skip the auto altogether.
Blast to drive? Absolutely. There are plenty of faster cars on the road, but I didn't choose the Z just for straight line speed. It's easy to buy upgrades on any number of factory boosted cars (Impreza, Evolution, MazdaSpeed3 even the lowly SRT4) that make them faster than the Z. But the overall package of price (purchase price and costs of ownership), comfort, features, reliability and excitement nothing else I looked at came close to the Z.
Without wanting to limit your choice too much I'd say for a great out of the box daily driver with track capability you should probably be looking for a Z with the HR engine ('07-'08) in either the Track or Grand Touring trim. You can always buy a different trim package and whatnot, I'm just trying to come up with something that you're not going to have to d!ck around with to get what you want.
I drafted this up last night but didn't finish it. I was going to go into the models a little more but Soup sort of did that for me. Speaking of which, Soup, that's a nice decision chart you came up with there...
...I expect my royalty cheque by St Paddy's Day.