Do I need winter tires if my vehicle is AWD or four-wheel drive?

All-wheel drive and four-wheel drive vehicles are great assets and they are very valuable in adverse driving conditions. They can assist in acceleration, even in wintry driving. Without winter tires, braking and turning, can be just as dangerous for all-wheel drive and four-wheel drive vehicles as it is for a two-wheel drive vehicles. All-wheel drive and four-wheel drive vehicles can be very useful, but are even more effective when combined with winter tires.