The BMW X5 is a great car to drive on the highway, but is completely unsafe to drive in the snow, even with snow tires. The rear wheel drive is too unreliable. The seats in the front of the SUV are comfortable for about 20 minutes, but after that, your back will get sore. The back seats are too stiff, for there is no siding for your back, and no grip.
Body of the car, and first impression on appearance.
More comfortable seating, better grip on icy/snowy roads