hehe yea taking that directly from my brothers experience this winter ... he was shocked how well it did ... his experience is it won't accelerate very fast in the snow but it stops and corners very well with real snow tires. which makes all the sense in the world, as the brakes, abs, traction control are great but the RWD will just not let you accel very fast even with 150 lbs of equipment in the trunk he carries for work.

i have yet to try it myself ... next winter looks like it will be my daily driver.

but i guess our definition of good is compromised as both of us drove FWD cars pushing over 300 hp with no traction control and very aggressive winter tires in winters prior ... sliding was a way of life, you just controlled what direction you slid in... hahaha.

added: although i did see a video of the XF on the summer tires some came with in the snow... very very funny as it would not move at all... tires are like shoes, don't wear a running shoe when the weather calls for snow boots.