it's not just a concept, it's reality...bmw supply these sport activity vehicle with sport tires. not to mention some are equip with wide width tires in the rear also. not really awesome on snow in the new england area. my first winter with the mich diamaris..i almost ended up on a ditch on 95 going 30mph with 3 inches of snow/slush on the ground. plus the miss got me season passes to skiing/snowboarding in new hampshire. they get far more snowfall up there.