An out-of-control blaze believed to have been sparked by a hybrid electric car has left a family home a smoking mess with neighbours rushing to help as loud explosions woke the street.

The blaze erupted at a Smithfield property, in Sydney’s southwest, just before 3am on Friday, forcing the family in the home to flee to their backyard as flames threatened the house.

Firefighters were able to contain the fire, but not before two cars were completely gutted and the front of the property was scorched.

For Saul Soto, who has lived in the home with his wife and children for 21 years, the devastation of the fire was overwhelming.

“I feel sad. It’s very hard, it’s emotional,” he told 7NEWS.

“Devastating inside my heart, you know.”

The fire is believed to have originated from a hybrid Toyota

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