WILMINGTON, Del. - Delaware State Police have charged four teenagers in a series of carjackings, including one in which the victim was struck with her own car.Police on Sunday said they charged two 16-year-old boys, a 15-year-old boy and a 15-year-old girl with robbery and other counts.The four teens live in Wilmington and New Castle County.In an April 8 carjacking in Newark, police say a 16-year-old boy and a 15-year-old girl stole the keys from a customer stopped at a convenience store.The victim was assaulted and before the suspects drove off they steered at the victim and struck her in the leg.The arrests were made Friday when troopers spotted a stolen Dodge Challenger with seven teenagers inside.Advertisement___DOWNLOAD: FOX 29 NEWS.