A lot of what motorists accept as truth about driving are often nothing more than common misconceptions. Although they seem like common sense on the surface, some can cause a devastating car accident. Here are three dangerous driving misconceptions: Driving Faster on Your Commute Saves Time Strictly speaking, driving faster does save time but not that much. For example, averaging 55 mph on a ten-mile commute requires about 11 minutes of travel. Averaging 70 mph on the same commute will take 8.6 minutes. This only saves you 2.4 minutes. While the.