Embark on a summer road trip across our country’s great expanse and the experience can be a little like driving in different countries, with different regions adopting discount road culture. Some places mosey while others race; some a flash of headlights signals it’s safe to pass, others to get out of the way. Some consider tailgating offensive, others as casual as a conga line. But there’s no doubting that some cities are just awful places to be behind the wheel, where America’s true pastime is stripped of its joy and dignity and replaced with frustration, anger or even danger. Here’s a look at the country’s worst offenders.