I used to work at Kroger. The store had 2 electric golf kart things for old people to ride while they shopped. We used to turn the outer perimeter of the inside of the store into a NASCAR track, and one person would push a driver full speed, 3 laps at full push speed for a whole circuit which made the corners very tight. These things drove at about 3mph, but at running push speed it was atleast 15mph, indoors with serious cornering. One night we hit the outer cold counter and did a lot of damage to the stainless trimming as well as the electric vehicle. We parked the kart and went back to work. I think we were all on drugs at the time.