DETROIT – A Tesla Model S electric car that crashed and burned last month in Florida, killing two teenagers, was traveling 116 miles per hour (187 kph) three seconds before impact and only slowed to 86 mph (138 kph) as the air bags were inflated, according to federal investigators. The National Transportation Safety Board, in a preliminary report on the crash, also said that the car missed a curve with a speed limit of 25 mph (40 kph), crashed into a wall twice, and witnesses reported that it erupted in flames. The driver and front-seat passenger, both 18, were killed in the May 8 crash in Fort Lauderdale. A rear-seat passenger was ejected and injured. According to the report released Tuesday, the car's lithium-ion battery re-ignited twice after firefighters extinguished the flames, once as the car was being loaded for removal from the scene and again in a storage yard.

A Tesla Model S electric car that crashed and burned last month in Florida, killing two teenagers, was traveling 116 miles per hour three seconds before impact and only slowed to 86 mpg as the air bags were inflated, according to federal investigators. The National Transportation Safety Board, in a preliminary report on the crash, also said that the car missed a curve with a 25 mph speed limit, crashed into a wall twice, and witnesses reported that it erupted in flames. The driver and front-seat passenger, both 18, were killed in the May 8 crash in Fort Lauderdale. A rear-seat passenger was ejected and injured. According to the report released Tuesday, the car's lithium-ion battery re-ignited twice after firefighters extinguished the flames, once as the car was being loaded for removal from the scene and again in a storage yard.