Hello,

Okay, I have an 03' C32 AMG. Currently running with stock 17x 7.5 & 8.5 rims. The car has been lowered with H&R springs.

I have read that if I use 18's or 19's (8.5 / 9.5) I should run at a 32 and a 35 offset front and rear.

So... I got this online calculator. http://marksink.com/tire_wheel_offset/offset.html

Is it making me overthink the process.

When I look at the car I have about an inch clearance on the rear towards the fender. This translates to appx. 25mm clearance.

On the front I have decent clearance. See the picture.

I am trying to maintain the same circumference.

Is it safe to move closer to the outside edge of my rear fender? I suppose that I can go another 12.7mm (0.5 inch)

But what about having a wheel that runs wider towards the center of the car?

For instance, use the calculator with these numbers for the rears.

Stock 8.5 inch wide @ 32 offset

Example 1. 9.5 wide @ 35 offset (10mm towards fender / 16mm away from center of car)
Example 2. 10.0 wide @ 35 offset (16mm towards fender / 22mm away from center of car)
Example 3. 9.5 wide @ 30 offset (11mm towards fender / 15mm away from center of car)

Example #3 make the most sense to me. Am I correct? What am I doing wrong?

I also need to think about the AMG brake caliper clearance. Is that the reason for the recommended offset of 35?

I understand that not all wheels fit over the AMG calipers. Would spacers be the answer? If so, then I need to incorporate the thickness of the spacer?

Please any info would be appreciated?

Miguel