Which item is not typically necessary for winter driving safety?

Having a candle in winter driving safety preparations is not typically necessary, even though it may provide some warmth and light in emergency situations. In contrast, a cellular phone is important for communication in case of emergencies, allowing drivers to call for help if they become stranded. An ice scraper is essential for clearing ice and snow from windshields to ensure good visibility while driving, which is crucial during winter conditions. Similarly, a first aid kit is fundamental for addressing any injuries that may arise from accidents or emergencies while on the road. Thus, while a candle may have some utility, it is not a standard item that contributes significantly to winter driving safety, making it the least necessary option among those listed.