Photo attached with 315 Falken next to 335 BFG, both on 18x12 wheels. A Yokohama 315 on the same wheel is about halfway between these two width wise.
And yet, other fast guys, one who works for Bridgestone, says the RT660 is at least equal to the other top tier tires, if not better. At least...
No help for the christmas tree, but I can't think of a single situation on a wet autocross course (or track) that the S197 traction control would be better on versus off. I mean my 17 y.o. (at the time) daughter and I did the Grenada Pro Solo last May where it rained approximately 400 inches...