245/40/18 all around on stock 18" wheels. Will there be any issues with the traction control or abs? It's an enthusiast model w/ the 18" stock rims. TIA

 

It is probably more economical to get another set of inexpensive yet good looking wheels to mount winter tires on. The tires will be cheaper, and you do not have to worry about ruining your wheels on the potholes and stuff that accompanies winter.

 

come spring I'm planning on getting 19's anyway, so these would probably be my dedicated winter wheels. I don't drive a whole lot so the tires would likely last several seasons. Just wanted to know if going with 4 tires of the same size would throw anything off (besides the speedo a bit).