I bought a set of 17" wheels off of a 2004 G35X and got some Continental Extreme WinterContacts.

But I don't have your guy's big brakes...

 

All 4 should match.
Best depends what your needs are.
Some are great on ice, some deep snow and some on cold wet roads.
Read up on the at tirerack and other websites.

I've had Blizzaks and Michelin X-Ice and they are both good. The X-Ice are good on asphalt, ice and snow but poor in slush. They are pretty quiet for a winter tire and have a good tread life rating too.
I have Hankook iPike's on my other car and they are good also but with the aggressive tread they are a bit noisy.

You can put the same size tires on the front and rear OEM 18" staggered wheels. That's what I have done and it's perfectly acceptable and within tire width specs

 

The normal blizzak and xice snow tires aren't available in the staggered S wheel sizes anymore (AFAIK). Only the performance snow LM-60 is now. The regular snow tires may be available in the front S tire size, you'll have to check at tire rack.

 

As I mentioned, you can put Michelin X-Ice 225/50/18 on the front and rear staggered wheels.

 

^ +2. as i mentioned earlier as well, i am on 225/50 all around on the staggered S wheels. no problems. a narrower rear tire is actually a good thing in the winter as it increases contact pressure for improved traction.

 

 

Thanks for the video. I've been explaining this to folks for years.
Are more problems/accidents caused because we can't get our vehicle moving of the line quickly or because we couldn't stop in time or maneuver the turn at the speed we were driving?
The only thing better is winter tires on AWD, which is what I did when I had my 07G35x too.

 

Personally I have been driving RWD Gs for 9 years on snow tires, and have only gotten stuck 2 or 3 times. However, living in Detroit we have a flat terrain and it pretty much doesn't snow here any more.

For steep inclines, I would recommend an AWD vehicle for extra safety. Some will say it depends on the driver and that RWD with winter tires is all you need, but from my experience I feel that AWD is better.

If you want to have a 6MT with AWD, you're limited to the TL, A4 and 328/335xi. I wish the G37x came with 6MT, but I will have to keep dreaming. Good luck on your purchase.

 

^ The OP decided to buy some wheels and snow tires. Smart choice in my opinion. Going to the slopes a few times a year doesn't warrant purchasing a new car, just to get AWD, when four good winter tires will do the job.

 

You and me both, rpm. I truly believe that AWD is mostly a scam, and 99% of the people who have AWD cars are drunk on the Kool-Aid. Facts be damned. AWD can be awesome in the snow, but only with snow tires.

I've got snow tires, anti-lock brakes, traction control, and a limited-slip differential. WTF do I need AWD for? Seriously.

I'm reminded how, just like Jesus, I too can walk on water when it freezes.

 

Thats a good video, but Im sure RWD would of had different results. It would have still won braking, but probably lost the skidpad or at least would have been a lot closer. I can tell you this. The only way your making it up the driveways around my neighborhood is with AWD and snows (with 1 inch of snow or more). I've never seen anybody make it with less, that includes both fwd and rwd with snows. It's just too steep of an incline, that's where awd really helps.

 

I have owned both the 07 G35x and an 11 G37S, I can tell you with certainty that my RWD handles better on snow, slush and ice, with winter tires better than my X did with A/S tires. The only exception is the straight line take-off. The RWD with winter tires still has absolutely no issue getting started on an 8% to 10% road grade.

Redpit - You must have some ridiculously sleep driveways where you live. Municipal design specifications and guidelines, where I live, don't allow us to design lot grades in excess of 6% with 8% driveways.

 

I've got a stupidly steep initial grade from the road to my driveway, then a slightly more gentle slope before it levels off behind the house at the garage. All I've ever needed is snow tires... and maybe three decades of experience driving in the snow.

Here's a pic. (That's my old car.)

 

Yeah the driveways here are super steep. I live in the Hudson Valley so we got some decent rolling hills / mountains.

Here's a good pic illustrating what im dealing with. I agree snow tires are the most important in snow, but sometimes you need both AWD and snows (refer to below pic).

 

Yikes. I agree, Redpit, if that were my driveway then I'd want AWD+Snows in the winter. Of course, that would also mean getting 335xi or an Acura TL SH-AWD... because 6MT.

Nah, screw that, because I really prefer Nissan. I'd probably just get a truck for winter and call it a day.