I know this because I'm friends with some PCA members who own both GT3s & GTRs.
Here's some of their comments on the GTR:
"Any how, 5k service intervals, warranty that does not mean much and worries of tranny failure and if you read GTROC SERIOUS issues with blown engines all took away enjoyment."
I read NAGTROC. The serious issues are with blown transmissions with poor run-in and lots of drag-strip work (which will happen with most cars), and blown engines with lots of power and lots of track work... which will, again... happen with most cars. I've been on the import forums for decades... and very few stock street cars will not suffer serious engine issues on the racetrack after prolonged use.
"Tranny Fluid changes are like $800. And if you are tracking, it would seem to be needed to be done all the time to stay in warranty. That could add up quickly....."
Never debated the servicing point. But Porsches are no piece of cake to maintain, either, if you want to stay within the Porsche warranty.
"They are a heavy car that is hard on pads, rotors and tires
Noted that, too.
and to maintain warranty for track use, it needs to go to the dealer before and after a track day + the infamous trans oil change after each track day as it suposedly begins to break down when it hits 130 degrees celcius
Known problem, the transmission fluid. Note the 'supposedly'. But the best part is below:
From the GTR forums:
"...you'll need a tranny cooler, oil cooler, diff coolers, brake ducting, and sway bars. In addition, one poster noted that he can only go about 15 mins before tranny temps exceed limits and he had to run cool down laps."
15 minutes on track. Did I mention the Mitsubishi TC-SST overheated and went into limp mode after just
five minutes? Many of these fancy new gearboxes don't do well on the racetrack... they really do get hot quickly... but then, some traditional automatics chew themselves to pieces when they get hot enough. It's actually nice that newer cars will go into limp mode if you run them hard long enough.
"Many of you probably know that after many hot laps of GT-R, some GT-Rs might get overheated and go into limp mode. According to GTRWorld, Nissan's solution on that for the Spec V models is to change the radiator cap that can support higher pressure. They claim the internal pressure of radiator is too low especially after pit in, the temperature will raise very high. So, the result is they use a 180kpa (26.1 PSI) radiator cap on the Spec V. That sure is one high pressure radiator cap I have ever seen on a regular production car."
As I said.. it's not too uncommon for this to happen to modern high strung turbocharged engines. Nothing new there. And limp mode means you're going home with a car that still runs. Infinitely preferable to going home with your car on the back of a flatbed and a blown gasket.
Again: we're comparing a bespoke made-for-track car with a road-going GT that's too big, too heavy and too hard on tires and brakes to be raced on a daily basis. Said road-going GT gives fantastic lap-times but doesn't have the endurance to do more than fifteen minutes on track at full blat. Big deal.
Most street cars can't do more than that safely. (frothing oil, cracking brake discs, coolant boil-over, boiling brake fluid, oil starvation... or all of the above... take your pick) It's not a problem unique to the GT-R.
You're right. It's a big, heavy GT. However, a lot of GTR fans seem to believe it's an unbeatable track monster when it's far from it. It's an impressive technological marvel & a great street car. A lot are under the impression that it's an awesome bang for your buck car when it's not. There are plenty of owners of really expensive cars that will caution you as to the true running costs of the Nissan...
Ah. There's the rub. Yes, the GT-R is expensive to run. But it
is a great
toy if all you're doing is the odd track day and time attacks (timed laps, cool-down in-between)... but like Stotty says, running any modern car on a regular basis on track can get real expensive... (which is why many people trailer their exotics between track events) ...hell... the stuff you're required to replace between track days are things I
would change between track days, regardless... and at least Nissan lets you keep the warranty if you
do the maintenance... unlike some manufacturers, where you're basically shafted whichever way you go.
Besides... it's not the car's fault if there are those with an unrealistically high (or low) opinion of it.
If you want something to actually go racing in... I can think of a zillion cars more practical to race than a GT-R or a Porsche 911 Turbo. A GT3RS is on that list... but at the head of it is a twenty year old Miata with twice its value in aftermarket coolers and brake parts thrown in...