Dramatic moment car hits parked car then slams into power pole in Adelaide

CCTV caught the dramatic moment an out-of control-car ploughed into a parked vehicle before slamming into a power pole.

A white Toyota Camry was travelling along Barrat Street in Smithfield in Adelaide's north when it slammed straight into the back of a parked car.

The force of the impact sent the hatchback off the road and onto the footpath.

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The woman behind the wheel kept driving, before she crashed into a power pole.

The commotion woke residents just after 8am.

Gavin Osmond said the crash was "very loud".

"I thought it was a gunshot. When I got out I obviously saw all the carnage," he said.

"The fellow next door came out and and he helped assist her and I just came over and made sure they're alright."

Alison O'Brien and her family were asleep inside at the time.

She said the crash could have had a very different ending if the pole hadn't been there.

"That's our bedroom through the front window so we were both in bed when it happened, so yeah, we were pretty lucky," she said.

The driver was taken to Lyell McEwin Hospital.

Police are still working to figure out exactly what caused the driver to crash, including if they suffered a medical episode

It's the second time a crash has happened in the street this week.

Last Sunday, security cameras caught another vehicle smashing into the back of a parked car.