Put snow tires on that Forester and it will blow away that Grand Margui in the snow.
Long wheel base + RWD = awful in wet/snow conditions unless weight is put in back and snow tires used.
I've never had a truck that didn't slip in the rear with just a little gas.
That's what surprised me. The same set of snow tires came off my Forester (sumitomo ice edge, 215/70-16) and went on the Grand Marquis. I think the Forester was so light that at highway speeds, hitting snow and slush would cause it to lift. But with 240 pounds in the trunk of the Grand Marquis, an anemic 170 horsepower v8 and ridiculous fuel economy gearing, there's just not enough power to spin the rear.
I'm sure if we're talking on all seasons only, the Subaru would do better. Or driving up unplowed roads. The ground clearance and AWD would go much further. But for daily driving , the Grand Marquis did quite well!