Police are combing through CCTV as they work to determine who set three Teslas alight at a dealership in Sydney's west, damaging the rest of the showroom.
The fire was originally thought to have started due to a battery explosion, but it was quickly ruled an arson attack after jerrycan lids were discovered near the Parramatta dealership.
Three cars were destroyed, and a showroom was badly damaged, but there were no injuries.
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"We dispatched a pretty heavy weight of attack on this fire, it did extend into the ceiling space, but we were able to quickly contain the fire to the area of origin," Aaron Ross from Fire Rescue NSW said.
"It is quite obvious and just taking a quick look there that these fires have started at the front of some of these vehicles."
Authorities are in the process of reviewing CCTV footage from nearby streets as they try to determine who was responsible and the motive.
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