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Help with track tires size

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I just bought a used set of 18" Carrera III 5 spoke wheels to use with track tires for my 2007 Carrera S.


These (carrera III) wheels are

Front: 18" x 8"

Rear: 18" x 10"

Stock Carrera S:

Front: 19" x 8"

Rear: 19" x 11"

I want to buy the Toyo Proxes R888 in these sizes.

Front: 235/40ZR18 Overall Diameter 25.5

Rear: 295/30ZR18 Overall Diameter 25.1

Will this setup be ok with the overall diameter being different than stock wheels/tires? Will this effect ABS, Traction, etc.? If this will not work, what are my options?

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Offset - offset - offset -- that is what you need to be concerned about. The offset (and wheel width) will determine what width tires you can use.

Tell us the wheel offsets please.

Here are the offset numbers labeled on the front of the wheels by the valve hole.

Rears: 10 58

Fronts: 8 57

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