i am about to put my winter tires on and use the same wheels. i have an old amg 17 x 7.5 front wheel that belonged to my clk430 - see picture. (the car i had before the c32) i wanted to carry a spare for the winter and use this old wheel and the current front summer tire as my spare. i didn't see the point in spending extra for a c32 style wheel since it was just a spare. my question is, will this wheel fit the front wheels and clear those big brake calipers as is? thanks in advance.

You will probably need a 10mm spacer.

But I thought the Styling I (the CLK wheels) and the Styling III (the C32 wheels) have the same offset of ET37??? I think you dont need a spacer.

Offset does not matter when clearing the brake calipers. It is the amount of backspace behind the spokes. The CLK wheels will not clear the brakes without a spacer for this reason.

On the official AMG site, they have the Styling I available for the C32. But I guess you might be right, Ben.