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Discussion Starter #1
Does anyone have the specs for the factory wheels on the ATS-V Sedan and Coupe (I hear different offsets between the two models).

Front: 18x9.0 255/35R18
Rear: 18x9.5 275/35R18

Bolt Patter: ?
Center Bore: ?
Front Offset: ?
Rear Offset: ?
 

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Discussion Starter #6
Care to share where you were able to find that?

I keep reading conflicting information. Some sites say 5x120 like CTS-V and some say 5x115 like ATS.

I've also seen 67mm center bore and also 70.3mm center bore.
 

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I got the info from other forums and I found nothing about the bore size.
5X120 has been confirmed by the owners.
I'm just trying to help you.
What about contacting the Cadillac dealer for info?
 

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Discussion Starter #8 (Edited)
Thank you I appreciate the help.

Cadillac dealer is clueless. They are still checking with their "technical" people.

Trying to line up winter wheels/tires so they are ready when I take delivery of my car.

The dealer suggested that I take their winter wheel/tire package for $3500.
 

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Does anyone know if I could get a set of 18x10.5" wheels w/ a 315/30R18 tire to fit in the rear and what kind of offset I would need so it doesn't stick out farther than stock (or very near so). Could a set of 18x9.5" w/ a 275/35R18 tire fit in the front w/ stock offset and not rub?

I would go out and do the measurements myself, but I'm in the Navy out to sea right now so doing that would be difficult. Thanks in advance.
 

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Does anyone know if I could get a set of 18x10.5" wheels w/ a 315/30R18 tire to fit in the rear and what kind of offset I would need so it doesn't stick out farther than stock (or very near so). Could a set of 18x9.5" w/ a 275/35R18 tire fit in the front w/ stock offset and not rub?

I would go out and do the measurements myself, but I'm in the Navy out to sea right now so doing that would be difficult. Thanks in advance.
Any further update on this?
 

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Does anyone know if I could get a set of 18x10.5" wheels w/ a 315/30R18 tire to fit in the rear and what kind of offset I would need so it doesn't stick out farther than stock (or very near so). Could a set of 18x9.5" w/ a 275/35R18 tire fit in the front w/ stock offset and not rub?

I'm taking my 275/35/r18s off the back and installing them on my front wheels (9") and buying a set of 295/35/r18s and installing them on my rear wheels (9.5"). A buddy of mine with a CTS-V did exactly the same on his 9" and 9.5" wheels.
 
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