Sometimes when traveling higher speeds (55-70)and braking going downhill, a hard brake will come out of nowhere. Not enough lock up the brakes or anything but enough to scare the crap out of you!!! If it would happen to a elderly person or a less experienced driver, they could probably lose control or wrack. With the power train…sometimes when accelerating(from a stop or low speed)it seems as though it gets stuck in gear or skips a gear. You won’t have any power then bam… almost cerps the back tires