When I drive on snowy roads, I carry 40kg of balanced weight in the trunk of my GR86. It's a front-engine, rear-wheel drive car, but the rear wheels are light on snowy roads and the tires spin freely, so I carry heavy items.
I loved driving the GR86 in the snow/rain. A real dance partner that thing. Had the same color as well. Will see if the Supra will he as fun in the winter (doubt that).