Start your left turn after you've reached the intersection's center. Your vehicle's rear wheels take a shorter course than the front wheels due to off-tracking. If you begin your left turn before reaching the intersection's center, your car's left side may collide with another vehicle. Another recommendation is to use the right-hand left-turn lane if two are available. You might not have enough room to turn left without swinging right from the leftmost turn lane. Another driver may try to pass you on your left as you turn if you swing right.