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F07 Gran Turismo (2010 - Current)
The 5 Series Gran Turismo -- now available in the USA as a 535i, 550i and 550i xDrive model.

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  #1  
Old 11-14-2013, 05:10 AM
STRMTRPR550iGT STRMTRPR550iGT is offline
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Location: Chicago
 
Join Date: Oct 2013
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Mein Auto: 2012 550i GT XDrive
E46 M3 Wheels for 550 GT, will they fit

I'm in need of winter wheels/tires for this winter and I found some pretty sweet black powder coated OEM E46 M3 wheels paired with Bridgestone Blizzaks on Craigslist...

The tires are BRIDGESTONE BLIZZAK LM25V WINTER SNOW/ICE TIRES 225/45/18 FRONT, 255/40/18 REAR...


According to: http://www.discountedwheelwarehouse...._Reference.cfm

The wheel config for my 2011 F07 is:
5 lug 4.72 inch or 120mm Medium Offset

and for an E46 M3 is either:

5 lug 4.72 inch or 120mm High Positive Offset

or:

M3 E46 Front: 5 lug 4.72 inch or 120mm High Positive Offset Offset
M3 E46 Rear: 5 lug 4.72 inch or 120mm Medium Offset

I'm not quite sure what to make of this... Will they fit?
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Last edited by STRMTRPR550iGT; 11-14-2013 at 05:12 AM.
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  #2  
Old 11-14-2013, 07:12 AM
STRMTRPR550iGT STRMTRPR550iGT is offline
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Location: Chicago
 
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Mein Auto: 2012 550i GT XDrive
Talked to BMW... Only wheels made for the 7 series or for the GT itself will correctly fit the GT... They don't recommend using spacers to make it work so I'm not going to do it.
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  #3  
Old 11-18-2013, 05:56 PM
DINAN_GT DINAN_GT is offline
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Mein Auto: BMW 550i GT DINAN Stg 3
BMW is just being cautious. Do you know the widths and offsets? That would help in a big way. However, you already have 20:s, why downgrade to 19"s, they look too small on our huge GTs
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  #4  
Old 11-19-2013, 01:21 AM
jadnashuanh jadnashuanh is offline
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Mein Auto: 535ix-drive GT
Quote:
Originally Posted by DINAN_GT View Post
BMW is just being cautious. Do you know the widths and offsets? That would help in a big way. However, you already have 20:s, why downgrade to 19"s, they look too small on our huge GTs
If he needs winter tires for actual snow, 20" are just plain stupid! If it's just for cold, larger is fine.

The diameter of those tires/wheels would throw off the speedometer and odometer, if they would fit at all. The stock size in 18" for the GT is 245/50-18, and that's a diameter of about 27.65" when new. The 225/45-18 diameter would be about 25.97", or about 6% different.. the max usually recommended is about 2%. The 255/40-18 or about 26.03 (close to the fronts), but still about 6% off. SO, the acceleration might be better, but you'd be running the engine faster and caulking up 6% more miles than actually driven (not a good thing for resale or if on a lease not counting the fuel economy hit).

Last edited by jadnashuanh; 11-19-2013 at 03:48 PM. Reason: put circumference when I meant diameter...same problem, though
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  #5  
Old 11-19-2013, 03:45 AM
STRMTRPR550iGT STRMTRPR550iGT is offline
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Location: Chicago
 
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Mein Auto: 2012 550i GT XDrive
Jad, thanks for your input and additional info. I went with some 18s off of a 2011 750i... Wrapping them in 245-50-18 Michelin Alpin PA4s... They are for snow, not for show, and due to the roads in Chicago being riddled with potholes and manhole covers, which are hard to see and dodge in the winter, and given what I've heard about the use of a smaller wheel and higher profile tire being the safer option for winter, I think the 18s will do just fine... That said, I'm already looking forward to putting my black powder coated OEM 20s and low profile sport tires back on in spring as my car looks much less aggressive sitting on these frumpy 18s...

Dinan, when you a) have to pay for all of your own equipment and upkeep for your car, which I'm guessing you don't since you're still in high school, and b) when you have a wife's safety to consider and not just your own vain considerations about how "cool" your car looks to your acne faced friends, I'm sure you'll understand making the safer and substantially less expensive winter wheel size choice.
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  #6  
Old 11-19-2013, 12:50 PM
jadnashuanh jadnashuanh is offline
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Mein Auto: 535ix-drive GT
Were you able to find PA4's in RFT? I bought my PA2's a few years ago when the PA3's were just coming out, but they didn't have it in a RFT in the size I needed. It will be awhile before these need to be replaced, and by then, maybe the PA5's will be available?! Just curious...

The impact noise is lower with the PA2's than my stock Goodyear tires. You do feel it squirm a little on a fast corner, but once the weather gets bad, you wouldn't be going that fast anyway in that situation. On the straight, they seem very similar to the Goodyears - actually, maybe a little quieter on some surfaces.
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  #7  
Old 11-19-2013, 11:13 PM
coolzila coolzila is offline
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Location: beijing
 
Join Date: Feb 2013
Posts: 9
Mein Auto: bmw 535GT
hi,you only need to know
18*8J
ET;30
5X120
71.6
if M3 Wheels as the same of 550GT,it's ok
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  #8  
Old 11-19-2013, 11:18 PM
coolzila coolzila is offline
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Location: beijing
 
Join Date: Feb 2013
Posts: 9
Mein Auto: bmw 535GT
225/45/18 FRONT,-6.13% small too much
255/40/18 REAR -5.84%
all of the tires is not fit you car
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