Boy climbed into driver 's seat of display car before starting engine . Car driven few metres before crashing into baby in a pushchair . Incident happened in front of horrified shoppers in Beijing shopping mall . Neither child was hurt in the incident but police are investigating . Comment:
Boy climbed into driver 's seat of display car before starting engine . Car driven few metres before crashing into baby in a pushchair . Incident happened in front of horrified shoppers in Beijing shopping mall . Neither child was hurt in the incident but police are investigating . Questions over why Model S Tesla on show was left unlocked .