[blackop]

I have an 06 300c that I will be upgrading to aftermarket 18" wheels that are 8.5 inches wide. The wheels come in 10 or 20 offset, which offset should I choose? The car is manly used for long road trips. Thanks is advance for your help.

 

[vVSHARKVv]

Stock AWD 18x7.5 wheels have a +55mm offset.

RWD are different. Don't Quote me. But I think I read they are a +38mm offset.

Good luck.

 

[vVSHARKVv]

Not sure if RWD stock are 18x7.5 or 18/8.5". But if stock RWD are 7.5 also. Then you would have to decide if you want to split that extra 1", or push the tires out the whole 1" to achieve a wider wheelbase. If that's the case. You will want to lessen to a +28mm offset. Though. I could be wrong