OK ...

I looked at the specs page for the 2008 model. Here is the OEM tire packages:

standard 18s: 18 x 8J rim with 225/50/18 all-season 94V rated tires all around

19s: 19x 8.5 rim with 225/45/19 front tires; 19 x 9 rim with 245/40/19 rear tires

Here is my thinking: the tire size for the 19s are the same as the 1st gen G35 coupe. However, the 18s are all the same size (instead of staggered setup in the 1st gen).

Here is my question: Can we use a 17" winter tire package for the NON-SPORT model? (Note: 13" brakes front and back) I want to use a 17" rim with a 225/55/17 or 215/60/17 tire (probably leaning toward 225/55/17 tire since it's closer to OEM spec circumference and greater variety in tire choice). 18s cost far too much for winter use ... and where I live, winter tires are a must. Any advice would be greatly appreciated. I have a feeling the bigger brake discs will make using 17s almost next to impossible. (And another reason why I would not get the sport model since this car, for me, will be daily driver purposes...)

Thanks in advance.

 

I am wondering the same thing, because a winter tire package will be my first major purchase for the G37. However, I am getting the sport, so I will probably go with an 18 inch wheel package. My only concern is finding a package that will clear the new calipers.

 

same here.. i have the sport on order.. and may look towards getting winter tires. living in boston offers up a few months of snow. i dont know tires at all.. for the most.. just looking for someone to tell me what to get.

 

Well, like you I am just beginning to learn and research winter tires. I have found that the Bridestone Blizzak and Dunlop Winter Sport M3, which are both performance winter tires have gotten very good reviews. These two types seem to be what the majority of other people with high performance RWD cars use on their cars for winter. Tirerack is a good site to go to, they give you reviews and ratings for the tires, so that would be a good place to start. I have pretty much decided that I am going to go with 18' Dunlop Winter Sport M3 on a set of dedicated winter wheels. I think that they are decently priced and have a very good winter rating.

 

If I have the current stock setup for 18's, with the Dunlop winter sport M3, they should work perfectly fine eh? 225/45 F, 245/45 R. Anyone know?

 

I would think so, but my only concern would be that I think the calipers and brakes are bigger on the G37, so that might be your only problem. Maybe someone else who knows more can chime in on this one.

 

Yes since have the oem 18's and not really looking to buy new rims But in the end if I have have to, no need to complain. A little price to pay for a new car I guess.

 

Just a FYI, I heard these Dunlops will soon be discontinued and replaced by the Winter Sport 3D (take a look at Tire Rack reviews ... 3D have good reviews as well ... I don't know about size selection though) So if you buy them ... in a couple of seasons, you might not be able to find them at the tire shop.

OEM size for 18s in the G37c is 225/50/18. The fronts might be a little small and the rears are a little big but I don't think it's significant, considering that the overall size for the 18s is almost identical to the 19s (which are the same between 1st gen and 2nd gen G coupes). The main thing is rim width and offset -- you might "rub" if the offset is not high enough if the rims are wide. So those who like "deep dish" rims will more likely have issues with fitment.

For example: if you had a 19x10.5 rim with +11 offset, you might have issues with rubbing if you are lowered (ie slammed). To avoid this issue, people will 'tuck' the rims (camber issues) or will 'roll fenders' or do other body modifications to make things fit. Another option is to keep OEM suspension setup. If you keep the OEM suspension setup, you might not have issues with rubbing (ie higher so more clearance).

 

I have the dunlop m3s in 225/45/18 F and 245/40/18 R
Wheel sizes are 18x8

I am hoping I can keep these for the G37 If I get one

 

Thanks for the information jdm. The Winter Sport 3D does look like it would be a pretty good tire. Now I just have to decide whether I should go with the 3D or M3.

 

So in short with the OEM wheels in 18's and the tire size i mentioned they should fit without any issues?