I can't speak directly about the TCH, because I haven't wintered with mine yet, but I can't see it would be any different than any other front wheel drive sedan with traction control, so here's my take. I personally drove more than ten years without winter tires, and thought it was fine. Then I tried winter tires for the first time, and I couldn't believe the difference. I've since driven cars with and without traction control, with and without winter tires. The winter tires always made a significant improvement. I'll never drive another winter without them.

--My hybrid came home!--
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Randy