Now police and the cars' owners are trying to find out how it happened and who is responsible.
At least five cars were burned out in the suspicious fires that broke out at about 3 a.m.
It happened along West Palisade Avenue.
"My neighbor woke me around 3 o'clock and said she heard some noises, like some popping sounds," said resident Kenneth Walker.
"She looked out the window and my car was on fire."
Walker woke up to see his 1986 Fiero burned out.
"I loved that car, it was in really good shape," he said. "It only had 73,000 miles on it, for a 25-year old car."
One witness overheard investigators saying that someone may have driven down West Palisade Avenue and thrown incendiary devices at the cars.
Two hours after the cars were ablaze, families ran for cover when flames broke out at a house.
"I was sleeping when someone sudden came in running and they yelled out there's a fire in the house and we all ran outside," said resident Jose Rengifo.
Investigators believe the house fire was set at the same time as the car fires, but smoldered for a couple of hours before the flames started.
Investigators from the Bergen County Sheriff's officers and the Englewood Police Department have been on the scene.
The city's Memorial Day Parade is set for Monday and will not be affected by the investigation.
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